#### Added
- Material cache per gradiant texture
- Separated URP and HDRP demos
- `Radical Forge/Art Tools/Procedural Assets/Update Material Cache` - Update materials cached in each palette
- `Radical Forge/Art Tools/Procedural Assets/Clear Material Cache` - Clear materials cached in each palette
- `Radical Forge/Art Tools/Procedural Assets/Scan Project Materials With Procedural Asset Dependencies` - Finds any hints in materials that contain mismatched references and update the material
- `Radical Forge/Art Tools/Procedural Assets/Update Cached Dependant Materials` - Force updates only the cached materials and updates their references

#### Fixed
- Force update materials in each palette cache to ensure texture and uvs are accurate
- Consistency in material validation