Put all varyings into a single std::bitset with helpers to access it.

Implement passthrough geometry shaders using host's.

Useful for mobile and Intel Xe devices.

This ensures the original operand values are not overwritten when being used in the overflow detection.

Port optimization from Vulkan.

Fixes rendering in Devil May Cry without regressing Ori and the Blind Forest.

Fixes shader compilation in Okami HD

A buffer binding can change between shaders without changing the
shaders. This lead to outdated bindings on OpenGL.

Atomic operations are considered to have both read and write access. This was not  being accounted for.

WAR for AMD reading zeroes on uniform buffers of size 2.

~51% faster on Nvidia compared to previous method.