- #13: add IAsyncDatabase trait (99cd89f)
- #13: basic MMAVAsyncDatabase implementation (7830727)
- (breaking) #13: use IAsyncDatabase in warp (efd1e4e)

Refactor
- #13: move mmav to subfolder (175244c)
- #13: rename IDatabase file (a1e8312)

Build
- #13: add async-trait (52d2587)