Tests: move Color.cpp to Base

tests/src/App/CMakeLists.txt

@@ -3,7 +3,6 @@ target_compile_definitions(Tests_run PRIVATE DATADIR="${CMAKE_SOURCE_DIR}/data")
 target_sources(Tests_run PRIVATE
         Application.cpp
         Branding.cpp
-        Color.cpp
         ComplexGeoData.cpp
         Document.cpp
         DocumentObject.cpp

tests/src/Base/CMakeLists.txt

@@ -4,6 +4,7 @@ target_sources(Tests_run PRIVATE
         Bitmask.cpp
         BoundBox.cpp
         Builder3D.cpp
+        Color.cpp
         CoordinateSystem.cpp
         DualNumber.cpp
         DualQuaternion.cpp