video_core/macro_interpreter: Simplify GetRegister()

We can just use .at(), which essentially does the same thing, but with
less code.

Given we already ensure nothing can set the zeroth register in
SetRegister(), we don't need to check if the index is zero and special
case it. We can just access the register normally, since it's already
going to be zero.

We can also replace the assertion with .at() to perform the equivalent
behavior inline as part of the API.

filesystem: Use a std::string_view in OpenFile()

gpu_thread: Improve synchronization by using CoreTiming.

file_sys/control_metadata: Amend naming of members

hle/service: Resolve unused variable warnings

gl_shader_decompiler: Fix TXQ types

yuzu/main: Minor adjustments to OnTransferableShaderCacheOpenFile()

video_core/renderer_opengl: Remove unnecessary includes

yuzu/main: Remove unnecessary includes

Rather than make a full copy of the path, we can just use a string view
and truncate the viewed portion of the string instead of creating a totally
new truncated string.

TXQ returns integer types. Shaders usually do:

R0 = TXQ(); // => int
R0 = static_cast<float>(R0);

If we don't treat it as an integer, it will cast a binary float value as
float - resulting in a corrupted number.

In several places, we have request parsers where there's nothing to
really parse, simply because the HLE function in question operates on
buffers. In these cases we can just remove these instances altogether.

In the other cases, we can retrieve the relevant members from the parser
and at least log them out, giving them some use.

Quite a few unused includes have built up over time, particularly on
core/memory.h. Removing these includes means the source files including
those files will no longer need to be rebuilt if they're changed, making
compilation slightly faster in this scenario.

While we're at it, don't use <QtGui> and <QtWidgets> and instead include
exactly which headers we actually need.

Allows these strings to have no allocation cost when used at runtime.

Rather than scream that the file doesn't exist, we can clearly state
what specifically doesn't exist, to avoid ambiguity, and make it easier
to understand for non-primary English speakers/readers.

We can just make the trailing portion of the string part of the
formatting, getting rid of the need to make another temporary string.

Simplifies the amount of string conversions necessary. We also don't
need to log out what occurs here.

There's no need to construct a QFile instance just to check for its
existence.

common/lz4_compression: Remove #pragma once directive from the cpp file

Introduced within 798d76f4, this only
really has an effect within header files.

Silences a -Wpragma-once-outside-header warning with clang.

service/am: Correct behavior of CreateTransferMemoryStorage()

frontend: Open transferable shader cache for a selected game in the gamelist

Better LZ4 compression utilization for the disk based shader cache and the yuzu build system

 gl_shader_manager: Remove reliance on a global accessor within MaxwellUniformData::SetFromRegs()

kernel/object: Remove unused handle type entry

Quite a bit of these were out of sync with Switchbrew (and in some cases
entirely wrong). While we're at it, also expand the section of named
members. A segment within the control metadata is used to specify
maximum values for the user, device, and cache storage max sizes and
journal sizes.

These appear to be generally used by the am service (e.g. in
CreateCacheStorage, etc).

For whatever reason, shared memory was being used here instead of
transfer memory, which (quite clearly) will not work based off the name
of the function.

This corrects this wonky usage of shared memory.

Also amend erroneous use of size_t. We should be using u64 here.

service/am: Implement EnterFatalSection/LeaveFatalSection

yuzu/debugger/profiler: Remove unnecessary includes

vk_swapchain: Implement a swapchain manager

kernel/shared_memory: Sanitize supplied size when unmapping

kernel/thread: Minor interface cleanup

yuzu/applets/{profile_select, software_keyboard}: Use QDialogButtonBox standard buttons instead of custom ones where applicable

Like the previous change, this allows Qt to handle proper translations
of the UI buttons, rather than us needing to handle it.

Makes for shorter code, while also not requiring the buttons to be
directly translated, they'll be handled by Qt itself.

The AddressArbiter type isn't actually used, given the arbiter itself
isn't a direct kernel object (or object that implements the wait object
facilities).

Given this, we can remove the enum entry entirely.