Fix .def and .rc files not being compiled into windows shell extensions

shell_integration/windows/OCContextMenu/CMakeLists.txt

@@ -5,6 +5,8 @@ add_library(OCContextMenu MODULE
     OCContextMenuFactory.cpp
     OCContextMenuRegHandler.cpp
     stdafx.cpp
+    OCContextMenu.rc
+    OCContextMenu.def
 )
 
 target_link_libraries(OCContextMenu

shell_integration/windows/OCOverlays/CMakeLists.txt

@@ -4,6 +4,8 @@ add_library(OCOverlays MODULE
     OCOverlayFactory.cpp
     OCOverlayRegistrationHandler.cpp
     stdafx.cpp
+    OCOverlay.rc
+    OCOverlays.def
 )
 
 target_link_libraries(OCOverlays