[CommRustModule] implement uploading one-time keys to Identity

Summary:
Upload keys using API

Depends on D10384

Test Plan:

1. Login to device, check deviceID and open DDB of Identity on staging
2. Check number of one time keys
3. Call this method
4. Check DDb table if keys are there

Reviewers: marcin, varun, michal

Reviewed By: marcin, varun

Subscribers: ashoat, tomek

Differential Revision: https://phab.comm.dev/D10510