v0.0.0.6-503-g09fc492: Merge pull request #1511 from vlj/d3d12

D3d12: Tweaks

v0.0.0.6-499-gc07b0dc: Merge pull request #1514 from kd-11/gl_attrib_fix

gl: Minor fixes and improvements

v0.0.0.6-497-ga7fbd6c: Merge pull request #1481 from tambry/racoon

Implement _sys_memmove, minor fixes

v0.0.0.6-493-g6353575: Merge pull request #1512 from kd-11/gl_sampler_fix

gl: Always bind null for unused shader inputs

v0.0.0.6-491-g0f0de47: Merge pull request #1516 from kd-11/rsx_textureutils_fix

Handle swizzled CELL_GCM_B8 textures

v0.0.0.6-489-g422f5c0: Merge pull request #1510 from vlj/rsx

rsx/common/d3d12/gl: Use span in vertex upload function.

v0.0.0.6-487-g4e4325a: Merge pull request #1509 from vlj/rsx

rsx/common: Track transform constant update.

v0.0.0.6-485-g9404cd5: Merge pull request #1508 from vlj/d3d12

D3d12: Tweak root signature and improves HRESULT message

v0.0.0.6-482-ga9180ce: Merge pull request #1507 from vlj/vulkan

Vulkan: Add glslang and LoaderAndValidationLayers

v0.0.0.6-480-gb632386: Merge pull request #1502 from kd-11/gl_staging

gl: Enable texture and render target caching for OpenGL