main
Change build system to meson.build.
Replace *CernColor* object with *GBoxed* type, to support boxing, and use it with pass by value. May have some bugs, added more and more files. Big changes are not ready. Maybe need some ~1-2 weaks...
NON buildable. Just save changes.
Initial
Some warnings are gone. But have some bugs. Sometimes got critical error with message NOT IMPLEMENTED.