services: time: Implement CalculateSpanBetween.

audio_core: Accept Audren REV8

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.

- Used by Super Smash Bros. Ultimate.

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