Try to fix problems with stencil test in some games, relax translation to opengl enums to avoid crashing and only generate logs of the errors.

Add support to color mask to avoid issues in blending caused by wrong values in the alpha channel in some render targets.

- Fixes an issue where macros could be skipped.
- Fixes rendering of distant objects in Super Mario Odyssey.

Fixed block height settings for RenderTargets and Depth Buffers, and added block width and block depth

Add asserts for compute shader dispatching, transform feedback being
enabled and alpha testing. These have in common that they'll probably break
rendering without logging.

This patch caches VAO objects instead of re-emiting all pointers per draw call.
Configuring this pointers is known as a fast task, but it yields too many GL
calls. So for better performance, just bind the VAO instead of 16 pointers.

Before each draw call, for every enabled vertex array configured as instanced, we take the current instance id and divide it by its configured divisor, then we multiply that by the corresponding stride and increment the start address by the resulting amount. This way we can simulate the vertex array being incremented once per instance without actually using OpenGL's instancing functions.

We keep track of the current instance and update an uniform in the shaders to let them know which instance they are.

Instanced vertex arrays are not yet implemented.

These are used by nouveau and some games like SMO.

This should make the es2gears example not crash anymore.

- Fixes mem corruption with Super Mario Odyssey and Pokkén Tournament DX.

We move the initialization of the renderer to the core class, while
keeping the creation of it and any other specifics in video_core. This
way we can ensure that the renderer is initialized and doesn't give
unfettered access to the renderer. This also makes dependencies on types
more explicit.

For example, the GPU class doesn't need to depend on the
existence of a renderer, it only needs to care about whether or not it
has a rasterizer, but since it was accessing the global variable, it was
also making the renderer a part of its dependency chain. By adjusting
the interface, we can get rid of this dependency.

Compresses a few namespace specifiers to be more compact.

These seem to be just a valid as the GL token values. Thanks @ReinUsesLisp

This restores graphical output to Disgaea 5

OpenGL's default behavior is already correct when the GPU is configured to flip the triangles.

This fixes 1-2 Switch's splash screen.

Some games set the full GL define value here (including nouveau), but others just seem to set those last 3 bits.