[D3D12] Avoid use of D3D12_RESOURCE_STATE_ALL_SHADER_RESOURCE constan…

…t to support older MSVC compilers.

Enum entry D3D12_RESOURCE_STATE_ALL_SHADER_RESOURCE is not defined in D3D SDK in MSVC16 environment.
Use bitwise OR combination (D3D12_RESOURCE_STATE_PIXEL_SHADER_RESOURCE | D3D12_RESOURCE_STATE_NON_PIXEL_SHADER_RESOURCE) as alternative.

sources/Renderer/Direct3D12/RenderState/D3D12PipelineLayout.cpp

@@ -305,7 +305,7 @@ static D3D12_RESOURCE_STATES GetD3D12BindingResourceState(const BindingDescripto
             else if ((bindingDesc.stageFlags & StageFlags::FragmentStage) == 0)
                 return D3D12_RESOURCE_STATE_NON_PIXEL_SHADER_RESOURCE;
             else
-                return D3D12_RESOURCE_STATE_ALL_SHADER_RESOURCE;
+                return (D3D12_RESOURCE_STATE_PIXEL_SHADER_RESOURCE | D3D12_RESOURCE_STATE_NON_PIXEL_SHADER_RESOURCE);
         }
     }
     return D3D12_RESOURCE_STATE_COMMON;