Further implementation will happen in a future commit.

Fixes a regression.

The error code was taken from the 3DS kernel.

HLE: Use a member variable instead of a virtual function to retrieve the max number of sessions that can be connected to an HLE service at the same time.

Split SessionRequestHandler::HandleSyncRequest into HandleSyncRequest, TranslateRequest and HandleSyncRequestImpl.

HandleSyncRequest now takes care of calling the command buffer translate function before actually invoking the command handler for HLE services.

KServerPorts now have an HLE handler "template", which is inherited by all ServerSessions created from it.

Threads do not wait for the server endpoint to call AcceptSession before returning from a ConnectToPort or GetServiceHandle call.

Sessions and Ports are now detached from each other.
HLE services are handled by means of a SessionRequestHandler class, Interface now inherits from this class.
The File and Directory classes are no longer kernel objects, but SessionRequestHandlers instead, bound to a ServerSession when requested.
File::OpenLinkFile now creates a new session pair and binds the File instance to it.

Pass the triggering ServerSession to the HLE command handler to differentiate which session caused the request.

Kernel/HLE: Service::Interface no longer inherits from any Kernel object, and is now its own standalone class.

Interface is now used by aggregation in ClientPort, to forward service commands to their HLE implementation if needed.

fixup!  Kernel/IPC: Use Ports and Sessions as the fundamental building block of Inter Process Communication.

 Kernel/IPC: Use Ports and Sessions as the fundamental building block of Inter Process Communication.

All handles obtained via srv::GetServiceHandle or svcConnectToPort are references to ClientSessions.
Service modules will wait on the counterpart of those ClientSessions (Called ServerSessions) using svcReplyAndReceive or svcWaitSynchronization[1|N], and will be awoken when a SyncRequest is performed.

HLE Interfaces are now ClientPorts which override the HandleSyncRequest virtual member function to perform command handling immediately.

Move WINVER definition to cmake and a bit of cleanup

dynarmic: Fix ABI violation

Caused by not saving/restoring the x64 r15 register on entry/exit from
JITted code.

Closes #2224.

ClangFormat: Fixed the clang-format errors

Set client SDK version to Service APIs

Build: Fixed a few warnings.

Kernel/Loader: Grab the system mode from the NCCH ExHeader.

Remove the broken frame_skip option

Correct FS error codes & add path boundary checks

3dsx and elf files default to system mode 2 (96MB allocated to the application).

This allows Home Menu to boot without modifications.
Closes #1849

Rasterizer/Memfill: Set the correct stencil write mask when clearing the stencil buffer.

Fixes #1960.

MIC_U: Stub service funcions

Change "user" folder default location to AppData/Roaming/ on Windows systems

dynarmic: Add ticks based on ticks executed, not ticks requested