build-with-colors: moar colors

- rename CL_PFX and CL_INS to better match the
  colors they show.
- add more colors.

Output of:
- most host stuff is yellow
- most target stuff is green
- installing/copying files is cyan
- import/export includes and notice files is cyan
- bootimage/recoveryimage is cyan
- and some more colors in many places ;)

Change-Id: I5532afa4ba608e0a7c408516dc9f912f9ca389f7

Conflicts:

	core/Makefile
	core/definitions.mk
	core/main.mk

Conflicts:
	core/Makefile
	core/droiddoc.mk
	core/tasks/apicheck.mk