Initial commit of rkcommon
Summary:
Dependency of openvkl.
Signed-off-by: Martin Reboredo <yakoyoku@gmail.com>
Test Plan: Built openvkl against it.
Reviewers: Triage Team, JoshStrobl
Reviewed By: Triage Team, JoshStrobl
Subscribers: JoshStrobl, joebonrichie
Differential Revision: https://dev.getsol.us/D12327