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
envsetup: set OUT_DIR to an absolute path always

OUT_DIR was set to $(TOPDIR)out previously,
but $(TOPDIR) was null, so it was a relative path.
This broke releasetools, inline kernel building, etc
since they require absolute paths.
Fix it so that it is set to $(shell readlink -f .)/out
if $(TOPDIR) is null.

Also remove hacks which checked if (OUT_DIR) was out
and changed it to $(ANDROID_BUILD_TOP)/out to workaround
the aforementioned problem.

Change-Id: I459a3b1325a1bbea0565cd73f6acf160d4ed9b39