renderer_opengl: Use LOG_DEBUG for GL_DEBUG_SEVERITY_NOTIFICATION and GL_DEBUG_SEVERITY_LOW logs

Rasterizer: Use PBOs to reinterpret texture formats when games re-use the same memory.

LOG_TRACE is only enabled on debug builds which can be quite slow when
trying to debug graphics issues. Instead we can log the messages to the
debug log, which is available on both release and debug builds.

gl_stream_buffer: Add missing header guard

Prevents potential compilation errors from occuring due to multiple
inclusions

telemetry_session: Don't allocate std::string instances for program lifetime in GetTelemetryId() and RegenerateTelemetryId()

gl_shader_decompiler: Implement TextureCube/Texture3D for TEX/TEXS.

Shaders: Write all the enabled color outputs when a fragment shader exits.

Shaders: Fixed texture coordinates in TEX with Texture2D

The X and Y coordinates should be in gpr8 and gpr8+1, respectively.

This fixes the cutscene rendering in Sonic Mania.

acc/profile_manager: General cleanup

externals: Update dynarmic to a42f301c.

filesystem: Add support for loading of system archives

Revert "Port #3616 from Citra: "appveyor: set jobs to 4 for mingw""

telemetry_session: Don't allocate std::string instances for program lifetime in GetTelemetryId() and RegenerateTelemetryId()

Given these functions aren't intended to be used frequently, there's no
need to keep the std::string instances allocated for the whole lifetime
of the program. It's just a waste of memory.

This is only used in a shared_ptr, so we can forward declare it.

We have an overload of WriteBuffer that accepts containers that satisfy
the ContiguousContainer concept, which std::array does, so we only need
to pass in the array itself.

Arranges them in the order the members would be initialized

This is no longer used, so it can be removed.

Makes it a little bit more self-documenting.

Given the source and destination types are the same std::array type, we
can simply use regular assignment to perform the same behavior.

Avoids the need to repeatedly specify the whole array type in multiple
places.

ProfileInfo is quite a large struct in terms of data, and we don't need
to perform a copy in these instances, so we can just pass constant
references instead.

This doesn't modify the passed in array, so this can be a const
reference.

This can just be constexpr like the others

We can use the constructor initializer list and just compare the
contained u128's together instead of comparing each element
individually. Ditto for comparing against an invalid UUID.

This avoids needing to dump the contents of <random> into other files
that include the profile manager header.

common/telemetry: Migrate core-independent info gathering to common

We were only writing to the first render target before.
Note that this is only the GLSL side of the implementation, supporting multiple render targets requires more changes in the OpenGL renderer.

Dual Source blending is not implemented and stuff that uses it might not work at all.

Moving a const reference isn't possible, so this just results in a copy
(and given ProfileInfo is composed of trivial types and aggregates, a
move wouldn't really do anything).

Rasterizer: Reinterpret the raw texture bytes instead of blitting (and thus doing format conversion) to a new texture when a game requests an old texture address with a different format.

Rasterizer: Don't attempt to copy over the old texture's data when doing a format reinterpretation if we're only going to clear the framebuffer.

GLRasterizer: Implemented instanced vertex arrays.