search: switch to nostrdb profile searching (William Casarin)

ndb: add nostrdb migrations (William Casarin)

tests: add ndb support to tests (William Casarin)

ndb: don't verify flatbuffers in release builds (William Casarin)

ndb: switch profile queries to use transactions (William Casarin)

ndb: add NdbTxn transaction class (William Casarin)

nostrdb/c: update to include transaction support (William Casarin)

ids: introduce NoteKey (William Casarin)

nostrdb: add profiles to nostrdb (William Casarin)

pushed to damus:refs/heads/master

http://git.jb55.com/damus/commit/7a85ae29ca27e763b18b1b8653c4a70cf91cb913.html