Squashed 'library/rsd/' content from commit 58640f6

git-subtree-dir: library/rsd
git-subtree-split: 58640f6b11de7dcc9864ddb47863340896d55e0f
Merge commit '03a752556185c9cb04b0ee5ef39496fc80a18cc7' as 'library/rsd'
Add rsd library.
Wire up rsd library.