First feature set

[Delt06]

• [x] Basic Toon Shader with Global Ramp
• [x] Crisp Anti-Aliased Ramp
• [x] Variance Shadow Mapping
• [x] MSAA
• [x] VSM Blur: add a multi-compile option for simpler blur
• [x] Fix preview lighting
• [x] Change _buffer.SetGlobalVector(DirectionalLightColorId, Vector4.one); back to zero
• [x] Shadows: normals bias
• [x] Crisp AA for shadows
• [x] HDR
• [x] Bloom
• [x] Stylized Bloom
• [x] Outline (inverted hull)
• [x] Custom normals for the inverted hull outlines
• [x] SSAO
• [x] Stylized SSAO (cross-hatching)
• [x] fog: both for forward and inverted hull outline
• [x] MSAA: depth "resolve" via a depth-only pass
• [x] Optimize shadow coords computation (bake transformations into the matrix)

[Delt06]

Transferred all remaining tasks to independent issues.