Make `ProjectDefinition >> #monticelloTimestamps_code` an extension in `stx:goodies/monticello` ...and convert it to use (not so) new annotation-based extension mechanism.

*.sav
makefile
objbc
objvc
objmingw
.listOfSTfiles
ntLibInit.c
MAKE0000.@@@
.dependencies
*.res
*.RES
*.H
*.STH
*.RES
*.sc
*.c