Prevents a -Wnonnull warning on GCC.

common/fs/file: Default initialize IOFile members

Relocates them to the same place the move equivalents are at for
consistent viewing.

IOFile is a final class, so there's no need for a virtual destructor.

Prevents a potential uninitialized read vector in the move constructor.

video_core: rasterizer_cache: Use u16 for cached page count.

- Greatly reduces the risk of overflow, at the cost of doubling the size of this array.

cmake: Fix usage of CMAKE_DEPENDENT_OPTION

yuzu qt: Add an Apply button to configuration dialogs

CMAKE_DEPENDENT_OPTION takes a value argument, but as a macro function
it will read a variable name as the name and not the value. For
YUZU_USE_BUNDLED_QT, ensure that we are reading the value of MSVC. For
YUZU_ALLOW_SYSTEM_SDL2, CMAKE_DEPENDENT_OPTION is redundant here anyway
as we don't use that path on any toolchain by default.

cmake: Download Qt binaries on Linux if needed

core/arm: Drop ChangeProcessorID.

If the local version of Qt is older than the minimum version required by
yuzu, download a pre-built binary package from yuzu-emu/ext-linux-bin
and build yuzu with it, instead.

This also requires linking yuzu to the correct libraries after building
it, and copying over the required binaries when building yuzu.

This sets the Qt requirement to 5.12, which is intentionally behind the
versions used by our toolchains since they are not all updated yet to
5.15.

This code was used to switch the CPU ID on thread switches.
However since "hle: kernel: multicore: Replace n-JITs impl. with 4 JITs.", the CPU ID is not a constant.
This has been dead code since this rewrite, and dropped in dynarmic as well. So there is no need to keep it.

hid/gesture: Simplify point related code

applets/swkbd: Make use of QueuedConnection in returnPressed signal

* common: fs: fs_types: Create filesystem types

Contains various filesystem types used by the Common::FS library

* common: fs: fs_util: Add std::string to std::u8string conversion utility

* common: fs: path_util: Add utlity functions for paths

Contains various utility functions for getting or manipulating filesystem paths used by the Common::FS library

* common: fs: file: Rewrite the IOFile implementation

* common: fs: Reimplement Common::FS library using std::filesystem

* common: fs: fs_paths: Add fs_paths to replace common_paths

* common: fs: path_util: Add the rest of the path functions

* common: Remove the previous Common::FS implementation

* general: Remove unused fs includes

* string_util: Remove unused function and include

* nvidia_flags: Migrate to the new Common::FS library

* settings: Migrate to the new Common::FS library

* logging: backend: Migrate to the new Common::FS library

* core: Migrate to the new Common::FS library

* perf_stats: Migrate to the new Common::FS library

* reporter: Migrate to the new Common::FS library

* telemetry_session: Migrate to the new Common::FS library

* key_manager: Migrate to the new Common::FS library

* bis_factory: Migrate to the new Common::FS library

* registered_cache: Migrate to the new Common::FS library

* xts_archive: Migrate to the new Common::FS library

* service: acc: Migrate to the new Common::FS library

* applets/profile: Migrate to the new Common::FS library

* applets/web: Migrate to the new Common::FS library

* service: filesystem: Migrate to the new Common::FS library

* loader: Migrate to the new Common::FS library

* gl_shader_disk_cache: Migrate to the new Common::FS library

* nsight_aftermath_tracker: Migrate to the new Common::FS library

* vulkan_library: Migrate to the new Common::FS library

* configure_debug: Migrate to the new Common::FS library

* game_list_worker: Migrate to the new Common::FS library

* config: Migrate to the new Common::FS library

* configure_filesystem: Migrate to the new Common::FS library

* configure_per_game_addons: Migrate to the new Common::FS library

* configure_profile_manager: Migrate to the new Common::FS library

* configure_ui: Migrate to the new Common::FS library

* input_profiles: Migrate to the new Common::FS library

* yuzu_cmd: config: Migrate to the new Common::FS library

* yuzu_cmd: Migrate to the new Common::FS library

* vfs_real: Migrate to the new Common::FS library

* vfs: Migrate to the new Common::FS library

* vfs_libzip: Migrate to the new Common::FS library

* service: bcat: Migrate to the new Common::FS library

* yuzu: main: Migrate to the new Common::FS library

* vfs_real: Delete the contents of an existing file in CreateFile

Current usages of CreateFile expect to delete the contents of an existing file, retain this behavior for now.

* input_profiles: Don't iterate the input profile dir if it does not exist

Silences an error produced in the log if the directory does not exist.

* game_list_worker: Skip parsing file if the returned VfsFile is nullptr

Prevents crashes in GetLoader when the virtual file is nullptr

* common: fs: Validate paths for path length

* service: filesystem: Open the mod load directory as read only

settings: Suppress duplicate label name warning

CMakeLists: Update zstd to 1.5.0

settings: Forbid docked mode on handheld

kernel: process_capability: Add MapRegion capability

Most of the code already exists to do this, but the Apply button itself
was never added. This adds a button and boolean that tells yuzu to save
the configuration after applying settings, even if close/Cancel is
pressed on the dialog. Changes after applying will not be saved when
Cancel is pressed, though.

- Used by nx-hbloader

common/compression: Make use of std::span

input_common: Rewrite sdl analog mapping and fix controller disconnection crash

Allows for the incoming data stream to be non-allocating.

Allows making the incoming data stream non-allocating.

Various improvements to IPC and session management (Part 2)

Some users have reported rare crashes when pressing the Enter key on the keyboard to confirm input in the normal software keyboard, particularly in Super Smash Bros. Ultimate while entering the name of a ruleset or controller layout.

It is suspected that the QLineEdit::returnPressed signal is causing a race condition as confirming input through other means does not produce the crash. Since Qt::QueuedConnection posts an event to the event queue of the callee's thread instead of executing it directly on the caller's thread, this eliminates any potential race conditions from occurring in this scenario.

zstd 1.5.0 brings numerous performance improvements to the library, as
can be seen here: https://github.com/facebook/zstd/releases/tag/v1.5.0

gl_device: Intel: Disable texture view formats workaround on mesa

applets/swkbd: Send the correct text string on TextCheck::Confirm

- Fixes a use-after-free, work-around until we fixup session/port management.

- There are some issues with the current workaround, we will just use host memory until we have a complete kernel memory implementation.

This reverts commit f2c26443.