shader_cache: Permit a Null Shader in case of a bad host_ptr.

maxwell_3d: Reduce severity of ProcessSyncPoint

Port citra-emu/citra#4718: "fix clang-format target when using a path with spaces on windows"

shader_ir: Implement AOFFI for TEX and TLD4

core/memory: Minor simplifications to page table management

gl_state: Rework to enable individual applies

gl_shader_disk_cache: Use Zstandard for compression

kernel/{server_port, server_session}: Return pairs instead of tuples from pair creation functions

core/memory: Remove unused enum constants

memory_manager: Improved implementation of read/write/copy block.

These are holdovers from Citra and can be removed.

Now that nothing actually touches the internal page table aside from the
memory subsystem itself, we can remove the accessor to it.

Given the page table will always be guaranteed to be that of whatever
the current process is, we no longer need to keep this around.

Centralizes the page table switching to one spot, rather than making
calling code deal with it everywhere.

Keeps the return type consistent with the function name. While we're at
it, we can also reduce the amount of boilerplate involved with handling
these by using structured bindings.

Returns the same type that the function name describes.

Implement SyncPoint Register in the GPU.

kernel/server_session: Provide a GetName() override

common/multi_level_queue: Silence truncation warnings

Port citra-emu/citra#4651: "gdbstub: Fix some bugs in IsMemoryBreak() and ServeBreak. Add workaround to let watchpoints break into GDB."

video_core/engines: Remove unnecessary inclusions where applicable

- Fixes graphical issues with Chocobo's Mystery Dungeon EVERY BUDDY!
- Fixes a crash with Mario Tennis Aces

video_core/memory_manager: Mark a few member functions with the const qualifier

file_sys/fsmitm_romfsbuild: Utilize a string_view in romfs_calc_path_hash