UniqueShadow for Unity 5.6+ version
Fix:
Shader error in 'Volund/Standard Character (Specular, Surface)': invalid subscript '_ShadowCoord' 'UnityComputeForwardShadows': no matching 3 parameter function at line 201 (on d3d11)
The Blacksmith: Unique Character Shadows
https://assetstore.unity.com/packages/essentials/the-blacksmith-unique-character-shadows-39921