* CMake: Remove dead CODE_HEADER_FILES variable
* CMake: Remove dead COMMAND_CODE_HEADER_FILES and COMMAND_MOC_SOURCE_FILES
* CMake: Remove dead MOC_SOURCE_FILES and FORM_FILES_CPP references
* CMake: Remove dead HEADER_FILES reference
* CMake: Delete unused CustomPCH.cmake superseded by target_precompile_headers
* #7885 Update opm-common with optimized coordinate import
* #7885 Allow null as default result from a script method
* #7885 Propagate default parameter values to generated Python code
* #7885 Add CommandRouter as hub for worker methods
* #7885 Add support for use of CommadRouter from Python