Add TodoReview

For background, the plugin https://github.com/robcowie/SublimeTODO, which allows you to quickly find Todo's and other notes, doesn't have ST3 support. The author is no longer around to maintain (or accept PR's), leaving the package users out to dry. There were several forks attempting fixes, but all had major issues.

Just went ahead and fixed all the issues, added features and wanted to make a package out of it for everyone.

Thank you for your time.