Initial commit
Add rgbd master deps.
Remove deps to switch to subtree.
Add the deps subtree.

git-subtree-dir: deps
git-subtree-mainline: 3a011b60fc7cc8f1b09cb29511fe179560f3e13e
git-subtree-split: 95c1210b22b21b8a1aebae09fb69089326f6ac87
Get rid of the submodule.