feat: imagespace shaders support.

[Jonahex]

Shader cache support for imagespace shaders and some shaders REd. Missing shaders:

• ISApplyVolumetricLighting
• ISFXAA
• ISReflectionsRayTracing
• ISSAOBlur
• ISSAOCameraZ
• ISSAOComposite
• ISSAORawAO
• ISSILComposite
• ISSILRawInd
• ISSnowSSS
• ISTemporalAA
• ISUnderwaterMask
• LensFlare

Compute shaders also lack all of supporting code. Missing compute shaders:

• ISBlurCS
• ISCopySubRegionCS
• ISDownsampleCS
• ISPerlinNoiseCS
• ISSAOBlurCS
• ISSAOCameraZAndMipsCS
• ISSAORawAOCS
• ISVolumetricLightingGenerateCS
• ISVolumetricLightingRaymarchCS

Shaders are not adapted for VR. Missing VR-only shaders:

• ISDownsampleHierarchicalDepthBufferCS
• ISFullScreenVR
• ISPreTestDepthBufferCullingCS

Requires alandtse/CommonLibVR#55

[doodlum]

Would need to know if this doesn't break VR, as well as wait on the CommonLib PR.

Shouldn't the fog composite be listed as missing too?

[Jonahex]

Would need to know if this doesn't break VR

Imagespace shaders are disabled in VR in this PR

[Jonahex]

Shouldn't the fog composite be listed as missing too?

ISSAOCompositeFog? It's part of ISSAOComposite

[doodlum]

Shouldn't the fog composite be listed as missing too?

ISSAOCompositeFog? It's part of ISSAOComposite

Ah

[FlayaN]

Wait until this PR is completed #385 (update of clib-ng with your change as well in it do clib)

dev is now update with clib-ng with this RE included