vk_command_pool: Add missing header guard

audio_core: Remove unnecessary inclusions

behavior_info: Fix typo Renerer -> Renderer

Same behavior, but removes header dependencies where they don't need to
be.

Allows the implementation details to be changed without recompiling any
files that include this header.

service: Restore "unused" function

Turns out this function is actually used, but within a trace log.

arithmetic_integer_immediate: Make use of std::move where applicable

acc: Partially implement LoadOpenContext

Same behavior, minus any redundant atomic reference count increments and
decrements.

renderer_vulkan: Make unconditional use of VK_KHR_timeline_semaphore

Add automap feature for GC adapter

memory: Resolve a -Wdocumentation warning

install_dialog: Remove unused function prototype

game_list: Eliminate redundant argument copies 

memory doesn't exist as a parameter any more.

Allows the compiler to warn against cases where the return value isn't
used (which would be a bug).

This function doesn't have an implementation, so it can be removed to
prevent others from unintentionally using it.

Makes the naming consistent with the rest of the functions that are
present.

Several functions can be taken by const reference to avoid copies

control_flow: Make use of std::move in InsertBranch()

Places data structures where they'll eventually be moved to to avoid
needing to even move them in the first place.

Avoids unnecessary atomic increments and decrements.

General: Make use of std::nullopt where applicable

Allows some implementations to avoid completely zeroing out the internal
buffer of the optional, and instead only set the validity byte within
the structure.

This also makes it consistent how we return empty optionals.

ips_layer: Eliminate a redundant copy in Parse()

Prevents unnecessary copying of the line being parsed.

submission_package: Account for multi-content NSPs

This is used in multiple games such as:
- Clubhouse Games: 51 Worldwide Classics
- Grandia HD Collection
- XCOM 2 Collection
- Baldur's Gate 1/2
- Dr Kawashima's Brain Training
- Super Mario 3D All-Stars

renderer_opengl: Remove emulated mailbox presentation

hid: Implement Get/SetNpadHandheldActivationMode

Emulated mailbox presentation was causing performance issues on
Nvidia's OpenGL driver. Remove it.

Test: Decrease pad_update_ns

This is a hack to destroy all HostCounter instances before the base
class destructor is called. The query cache should be redesigned to have
a proper ownership model instead of using shared pointers.

For now, destroy the host counter hierarchy from the derived class
destructor.

This reworks how host<->device synchronization works on the Vulkan
backend. Instead of "protecting" resources with a fence and signalling
these as free when the fence is known to be signalled by the host GPU,
use timeline semaphores.

Vulkan timeline semaphores allow use to work on a subset of D3D12
fences. As far as we are concerned, timeline semaphores are a value set
by the host or the device that can be waited by either of them.

Taking advantange of this, we can have a monolithically increasing
atomic value for each submission to the graphics queue. Instead of
protecting resources with a fence, we simply store the current logical
tick (the atomic value stored in CPU memory). When we want to know if a
resource is free, it can be compared to the current GPU tick.

This greatly simplifies resource management code and the free status of
resources should have less false negatives.

To workaround bugs in validation layers, when these are attached there's
a thread waiting for timeline semaphores.