fix: re-add Create module to CMake build

The Create module (src/Mod/Create/) was lost from src/Mod/CMakeLists.txt
during the rebase onto upstream FreeCAD 1.2.0-dev. Without it:
- Mod/Create/ is never installed, so the bootstrap that loads ztools
  and silo never runs
- mods/ztools/ and mods/silo/ are never installed
- Startup shows 'Ignoring unknown SiloWorkbench/ZToolsWorkbench'

Also adds kc_format.py to the Create install list (was missing).

src/Mod/CMakeLists.txt

@@ -143,3 +143,6 @@ endif(BUILD_TUX)
 if(BUILD_WEB)
     add_subdirectory(Web)
 endif(BUILD_WEB)
+
+# Kindred Create core module - always built
+add_subdirectory(Create)

src/Mod/Create/CMakeLists.txt

@@ -13,6 +13,7 @@ install(
     FILES
         Init.py
         InitGui.py
+        kc_format.py
         update_checker.py
         ${CMAKE_CURRENT_BINARY_DIR}/version.py
     DESTINATION