All 3 test program done.

1. forktest: ./forktest <delay> <fork|vfork|clone> <command line>
2. getcolors: ./getcolors <process name> <process name> ...
3. setcolors: ./setcolors <process name> <color> <process name> <color>
...

	new file:   forktest.c
	modified:   getcolors.c
	new file:   setcolors.c