* Rename CLA files so they no longer say "draft."
* Change CONTRIBUTING.mv to correctly describe the new CLA process,
remove language related to the old SPI CLAs. Also some touchups to
README.md.
* Update the project_intake.md to check of various things that we've
completed.
* Change all references to the old imageworks GitHub URLs to the new
ASWF ones. (This touches comments at the start of basically every file.)
Signed-off-by: Larry Gritz <lg@larrygritz.com>