Service/FS: implement IFileSystem::RenameFile

GPU: Support multiple enabled vertex arrays.

Kernel: Reworked the new kernel synchronization primitives.

 Nvdrv/nvhost-as-gpu: Implemented the ioctl REMAP command. 

Nvdrv: Assert when receiving an unimplemented ioctl in the nv* handlers.

GPU: Make the GPU virtual memory manager use 16 page bits and 10 pagetable bits.

GPU: Implement the RGB10_A2 RenderTarget format

The vertex arrays will be copied to the stream buffer one after the other, and the attributes will be set using the ARB_vertex_attrib_binding extension.

yuzu now thus requires OpenGL 4.3 or the ARB_vertex_attrib_binding extension.

Verified with a hwtest and implemented based on reverse engineering.

Thread A's priority will get bumped to the highest priority among all the threads that are waiting for a mutex that A holds.
Once A releases the mutex and ownership is transferred to B, A's priority will return to normal and B's priority will be bumped.

Also added a consistency check and a comment for the case when the object id is different than its handle. The real nvservices doesn't make a distinction between ids and handles, each object gets an unique handle which doubles as its id.

It takes a previously-reserved (AllocateSpace) GPU memory address and maps it to the address of the nvmap object passed to Remap.

Also removed some dead code and added memory map consistency asserts.

GPU: Implement the RGB10_A2 RenderTarget format, it will use the same format as the A2BGR10 texture format.

GPU: Implement the A2BGR10 texture format.

SDL2: Implement fullscreen. (Original PR: citra-emu/citra#3607)

Shader opcode decoding

opengl: Remove unnecessary header inclusions

ShaderGen: Implemented fsetp/kil and predicated instruction execution.

gl_resource_manager: Add missing noexcept specifiers to move constructors and assignment operators

gl_rasterizer_cache: Make MatchFlags an enum class

Each predicated instruction will be wrapped in an `if (predicate) { instruction_body; }` in the GLSL, where `predicate` is one of the predicate boolean variables previously set by fsetp.

Predicate variables are now added to the generated shader code in the form of 'pX' where X is the predicate id.
These predicate variables are initialized to false on shader startup and are set via the fsetp instructions.

TODO:

* Not all the comparison types are implemented.
* Only the single-predicate version is implemented.

They work in tandem with guest code to provide synchronization primitives along with svcArbitrateLock/Unlock

Switch mutexes are no longer kernel objects, they are managed in userland and only use the kernel to handle the contention case.
Mutex addresses store a special flag value (0x40000000) to notify the guest code that there are still some threads waiting for the mutex to be released. This flag is updated when a thread calls ArbitrateUnlock.

TODO:
* Fix svcWaitProcessWideKey
* Fix svcSignalProcessWideKey
* Remove the Mutex class.

resource_limit: Make ResourceTypes an enum class

core: Relocate g_service_manager to the System class