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).