be able to flag private keys as non-syncable
Let's allow the users to have local-only private keys, so they don't get syncronized by soledad. It will be the responsability of the user to sync does manually.
Do we have a way to do that with the current soldad? @drebs mention something about the blobs being able to do that.
Maybe we should store something on what is the private key, but not the key material, so when another bitmask client gets connected doesn't generate a new key but waits (or asks) for the user to upload it manually.