Add new Squisher/Opticharger for Lollipop (2/2)

notice:
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needs pngquant (best tool) install on linux system for this feature to work

p4:
   use ascii color codes instead of tput. Its more universal

Signed-off-by: Chet Kener <Cl3Kener@gmail.com>
Change-Id: Ib89addf8cba8a7a48e94df3d9e077b1526d9829c

@fusionjack:
* Move scripts to tools folder
* Define the SQUISHER_SCRIPT
* Slim-ify
* Colorize opticharger
* Force only using pngquant

Change-Id: If877d6f27790e49d7476702c0a7af9ce736741b6

Conflicts:
	config/common.mk