Adding Color LCD Shield hardware design files

Required massive file structure reordering. Color LCD Shield library
moved to firmware folder.
cleaning up top-level readme and trimming down firmware readme
on second thought - top-level heading and second-level headings look better
Adding hardware license to readme
Merge pull request #9 from sparkfun/readme_cleanup

README Cleanup
Merge branch 'progmemify' of https://github.com/digitalcardboard/ColorLCDShield into digitalcardboard-progmemify