Adds a Qt and SDL2 frontend for Vulkan. It also finishes the missing
bits on Vulkan initialization.

An implementation of the cemuhook motion/touch protocol, this adds the
ability for users to connect several different devices to citra to send
direct motion and touch data to citra.

Co-Authored-By: jroweboy <jroweboy@gmail.com>

GUI: rename and reorder themes

- We have some important audio settings, makes them more discoverable.

GUI/gamelist: add "None" as an option for second row and remove dynamically duplicate row options (#3309)

* GUI/gamelist: add "None" as an option for second row and remove duplicated row options

* fix clang-format warnings

MakeCurrent is a costly (according to Nsight's profiler it takes a tenth
of a millisecond to complete), and we don't have a reason to call it
because:
- Qt no longer signals a warning if it's not called
- yuzu no longer supports macOS

This was carried from Citra and wasn't really used on yuzu. It also adds
some runtime overhead. This commit removes it from yuzu's codebase.

With all of the trivial parts of the memory interface moved over, we can
get right into moving over the bits that are used.

Note that this does require the use of GetInstance from the global
system instance to be used within hle_ipc.cpp and the gdbstub. This is
fine for the time being, as they both already rely on the global system
instance in other functions. These will be removed in a change directed
at both of these respectively.

For now, it's sufficient, as it still accomplishes the goal of
de-globalizing the memory code.

* kernel: Replace usage of boost::intrusive_ptr with std::shared_ptr for kernel objects.

- See https://github.com/citra-emu/citra/pull/4710 for details.

..."Select Game Directory..."

Co-authored-by: vvanelslande <vvanelslandedev@gmail.com>

Emulates negative y viewports with ARB_clip_control. This allows us to
more easily emulated pipelines with tessellation and/or geometry shader
stages. It also avoids corrupting games with transform feedbacks and
negative viewports (gl_Position.y was being modified).

- This does not actually seem to exist in the real kernel - games reset these automatically.

# Conflicts:
#	src/core/hle/service/am/applets/applets.cpp
#	src/core/hle/service/filesystem/fsp_srv.cpp

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

Also displays current events if boxcat is selected.

Co-Authored-By: Vitor K <vitor-k@users.noreply.github.com>

These two colorful themes are based on the Default and Dark themes, and contain icons that are colored rather than black and white. These icons come from icons8.com and they have been slightly revised by me. I'm pretty sure I was licensed to use them for Citra.

Co-Authored-By: Pengfei Zhu <zhupengfei321@sina.cn>