common/alignment: Rename AlignBits to AlignUpLog2 and use constraints

common/bit_util: Replace CLZ/CTZ operations with standardized ones

Makes for less code that we need to maintain.

AlignUpLog2 describes what the function does better than AlignBits.

common/color: Remove

cmake: Remove yuzu_tester

This is a leftover from Citra we no longer use.

{video_,}core/cmake: Remove Werror flags already defined code-base wide 

These flags are already defined in src/cmake.

cmake: Enforce -Wunused-function code-base wise

vulkan_common: Silence missing initializer warnings

vulkan_device: Enable shaderStorageImageMultisample conditionally

We never ended up using yuzu_tester.
Removing it saves code duplication with yuzu_cmd, and distribution size on
prebuilt packages.

For unit testing, we can use catch2 from guest code and dump the results
to a file. Then execute yuzu from a script on ci if we want this to be
automated.

Stops us from merging code with unused functions in the future.

If something is invoked behind conditionally evaluated code in
a way that the language can't see it (e.g. preprocessor macros), the
potentially unused function should use [[maybe_unused]].

astc: Make the decoder more robust to invalid data

Silence warnings explicitly initializing all members on construction.

Fix Vulkan initialization on ANV.

Invalid ASTC textures seem to write more bytes here, increase
the size to something that can't make us push out of bounds.

Avoid out of bound reads on invalid ASTC textures.
Games can bind invalid textures that make us read or write out of bounds.

ci/linux: Make Mainline AppImages updateable

yuzu: Remove unused variables in Qt code

Removes two unused variables in out Qt code. In this case the removal of
these two results in less allocations, given std::map allocates on the
heap.

configure_motion_touch: Migrate off QRegExp to QRegularExpression

configure_motion_touch: Prevent use after move in ApplyConfiguration()

touch_engine was being compared against after being moved into the
setter for the engine, so this comparison wouldn't behave properly.

QRegularExpression was introduced in Qt 5 as a better replacement for
QRegExp. In Qt 6.0 QRegExp is removed entirely.

To remain forward compatible with Qt 6.0, we can transition over to
using QRegularExpression.

Fix IP validator error

yuzu: Migrate off of setMargin() to setContentsMargins()

setMargin() has been deprecated since Qt 5, and replaced with
setContentsMargins(). We can move over to setContentsMargins() to stay
forward-compatible with Qt 6.0.

vulkan_device: Remove requirement on shaderStorageImageMultisample

yuzu doesn't currently emulate MS image stores. Requiring this makes no
sense for now. Fixes ANV not booting any games on Vulkan.

cmake: Enforce -Werror=switch and -Werror=unused-variable