Fixing cloth working with Actors by reading directly from ModelAsset instead from EMFX Mesh. (#235)

- Fixing cloth working with Actors by reading directly from ModelAsset instead from EMFX Mesh.
- Actor caches map from joint indices in skin metadata to skeleton indices so they can be query later.
- Actor cloth skinning reads indices and weights from Model Asset instead from EMFX Mesh.
- Actor cloth skinning with unlimited skinning bones.
- Sort out cloth unit tests by disabling them until there is a way to create an Atom mesh
- Addressing feedback.

Gems/NvCloth/Code/Tests/ActorHelper.cpp

@@ -126,8 +126,7 @@ namespace UnitTest
         const AZStd::vector<AZ::Vector3>& vertices,
         const AZStd::vector<AZ::u32>& indices,
         const AZStd::vector<VertexSkinInfluences>& skinningInfo,
-        const AZStd::vector<AZ::Vector2>& uvs,
-        const AZStd::vector<AZ::Color>& clothData)
+        const AZStd::vector<AZ::Vector2>& uvs)
     {
         // Generate the normals for this mesh
         AZStd::vector<AZ::Vector4> particles(vertices.size());
@@ -142,7 +141,6 @@ namespace UnitTest
             vertices,
             normals,
             uvs,
-            clothData,
             skinningInfo
         );
     }