CMake: Make pch of Urho3D target private. Prevents spam of cmake_pch* in CLion IDE.
CMake: Make pch of Urho3D target private. Prevents spam of cmake_pch* in CLion IDE.

rokups/Urho3D,rokups/Urho3D,rokups/Urho3D,rokups/Urho3D,rokups/Urho3D,rokups/Urho3D