Drops an unused variant of ApplyPerGameSetting, and turns the QComboBox
variants of SetPerGameSetting into a template.

Co-authored-by: Ameer J <52414509+ameerj@users.noreply.github.com>

Allows setting CPU accuracy to Accurate or Unsafe per-game, as well as
the accuracy options for Unsafe. Debug is not allowed here as a per-game
CPU accuracy.

Originally, every time we add a per-game setting, we'd have to guard for
it when setting it on the global config, and use a specific function to
do it for the per-game config.

This moves the global check into the ApplyPerGameSetting function so
that we can use it for changing both the global and per-game states.
Less work for the programmer.

Monke brain can't remember what all of these does a year later.

Required to make CPU accuracy and unsafe settings available to use as a
per-game setting.

externals: Update mbedtls to 8c88150ca

externals: Checkout 79e8d17024 for FFmpeg

6b6b9e593d does not exist on FFmpeg master, and tag n4.3.1 requires
manually fetching all of FFmpeg's tags. `git` reports that the commit
does not exist initially and can be confusing as a result. Instead,
checkout the immediately previous commit from n4.3.1 on their master
branch.

ssl: Stub Import(Client/Server)Pki

configure_ui: Call RequestGameListUpdate when toggling "Show Add-Ons Column"

- Used in JUMP FORCE Deluxe Edition

hid: Improve hardware accuracy of gestures

kernel: Eliminate variable shadowing

kernel: Delete unused files

externals: Update SDL to 107db2d8

Building it as a shared library causes issues distributing it to an
AppImage, since linuxdeploy expects the executable to only dynamically
link to system libraries. Additionally, simply dynamically linking to a
library in the binary directory is bound to cause issues.

Solution is to use SDL's CMake switches and build it statically. We also
alias `SDL2` to `SDL2-static` on the external submodule for
compatibility with the rest of the project.

In light of 72a49c2b, the SDL submodule also needs updated. Updates
to the same commit used by the SDL package in ext-windows-bin.

Now that the large kernel refactor is merged, we can eliminate the
remaining variable shadowing cases.

- Improves native Switch JoyCon/Pro Controller support.

Kernel Rework: Migrate kernel objects to KAutoObject

ldr: Simplify memory copy within LoadNro()

We can use the dedicated memory function for performing copies instead
of reading into a temporary buffer and then immediately writing it back
out to memory.

Eliminates a bit of heap memory churn.

fixup! common: intrusive_red_black_tree: Disable static_assert that will not evaluate as constant on MSVC.