R1:ce55bb1d9630

Add icon, color and profile image to project.query

Summary:
- The icon CSS tag is transformed through the new function
PhabricatorProjectIcon::getAPIName($key), which returns
a name without fa-.

- Color is a trivial lookup
- Profile image returns the PHID or null if not available

Test Plan:
- Create two projects, with different icon and color,
one with and one without profile image.
- Request information on both using project.query
Then:
[ ] Confirm icon and colors are correct for both…