am: Implement VR related APIs

services: hid: Stub InitializeSevenSixAxisSensor.

Port citra-emu/citra#5089: "Set render window's focus policy to Qt::StrongFocus"

Port citra-emu/citra#4906: "citra_qt: fix the stuck in fullscreen mode"

Port citra-emu/citra#5093: "Replace non-commercial icons"

Co-Authored-By: Valentin Vanelslande <vvanelslandedev@gmail.com>

engines/const_buffer_engine_interface: Store image format and types

- Used by Super Smash Bros. Ultimate v7.0.0.

Implement (and stub) VR related APIs in AM sysmodule.

This fixes issue #2938

This information is required to properly implement SULD.B. It might also
be handy for all image operations, since it would allow us to implement
them on devices that require the image format to be specified (on
desktop, this would be AMD on OpenGL and Intel on OpenGL and Vulkan).

maxwell_to_vk: implement signedscaled vertex formats

yuzu: Remove exit lock for game pausing

Minor Readme Changes

Use the correct directory for Qt Plugins

xmad: fix clang build error

gl_shader_decompiler: Implement legacy varyings

Added Discord shield and direct link to contribution guide

Port citra-emu/citra#5106: "gdbstub: Ensure gdbstub doesn't drop packets crucial to initialization"

gl_rasterizer: Use transformed viewport for depth ranges

Implement MME shadow RAM

sm/controller: Increase PointerBufferSize

This increases the PointerBufferSize as a lager one is required by some services.
This change is still not hw-accurate, but it is proven to work in Ryujinx.

Instead of using a hardcoded size, we should figure out the specific values for each service in the future. Some of them can be taken from Atmosphere: https://github.com/Atmosphere-NX/Atmosphere/search?q=PointerBufferSize.

core/web_browser: Allow WebApplet to exit gracefully when an error occurs

Currently, yuzu just freezes when an error occurs while Initializing the WebApplet.
From a user perspective, this obviously isn't great as the game just softlocks.
With this change, yuzu will call the Finalize method, so to the game it seems like as the user just exited the WebApplet normally.

This works around https://github.com/yuzu-emu/yuzu/issues/2852.

Implement depth ranges using the transformed viewport instead of the
generic one. This matches the current Vulkan implementation but doesn't
support negative depth ranges. An update to glad is required for this.

set: implement GetRegionCode