Enables CCache on externals if available.

Drops usage of CMAKE_DEPENDENT_OPTION to allow using
YUZU_USE_BUNDLED_FFMPEG as an option on any platform. CI then now builds
FFmpeg always, netting about 10 MB less used on the AppImage.

Also somewhat fixes YUZU_USE_BUNDLED_QT so that it can be used even if
CMake doesn't clean up its state after running the first find_package.

input_common: Add missing modifier callback to analog from button

Replace usages of deprecated member functions in QMouseEvent and QWheelEvent

CMakeLists: Enforce C4189 on MSVC

TextureCache: Fix 1D to 2D overlapps.

This supplements C4101 by detecting initialized but unreferenced local variables

[audio_core] Decouple audio update and processing, and process at variable rate

cmake: Improve Linux dependency checking for externals

yuzu qt, core: Support LayeredFS mods from SDMC directory

main: Add GPU Vendor name to running title bar

We should not apply any mods when dumping a game's RomFS.

This prevents mod files from being locked due to the read-only share flag in Windows.

If someone else wants to support other mod formats in the SDMC
directory, that can be added later. For now, just allow RomFS modding
here and force people to do other types of mods the old way.

Addresses review comments.

Co-authored-by: LC <mathew1800@gmail.com>

Enables loading a mod directly from `[yuzu data
directory]/sdmc/atmosphere/contents/[title_id]`. For use with some
homebrew mod managers.

Enables dumping the RomFS to SDMC directory, specifically '[yuzu data
directory]/sdmc/atmosphere/contents/[title_id]/romfs'.

main: Display the instruction set of the running title in the window name

Displays whether the currently running title uses 64-bit instructions or only 32-bit instructions.

Currently, processing of audio samples is called from AudioRenderer's Update method, using a fixed 4 buffers to process the given samples. Games call Update at variable rates, depending on framerate and/or sample count, which causes inconsistency in audio processing. From what I've seen, 60 FPS games update every ~0.004s, but 30 FPS/160 sample games update somewhere between 0.02 and 0.04, 5-10x slower. Not enough samples get fed to the backend, leading to a lot of audio skipping.

This PR seeks to address this by de-coupling the audio consumption and the audio update. Update remains the same without calling for buffer queuing, and the consume now schedules itself to run based on the sample rate and count.

buffer_cache,texture_cache: Misc fixups from the memory reaper

libusb: Apple is a POSIX system

services: Misc. minor changes for latest SDK update.

Fixes a regression unintentionally introduced by the garbage collector.
This makes regular memory downloads only flush the requested sizes.

This negatively affected Koei Tecmo games.

Enforce implicit integer casts to a smaller type as errors.

vulkan_device: Make device memory match the rest of the file

Match the style in the file.

astc: Various robustness enhancements for the gpu decoder

common: Replace common_sizes into user-literals

- TIPC does not use this.