refactor(o365_mu): Processing bulk of entities
Created by: stavamichal
- send script connector was merged with the process script to the one working script (there is no need for multi-thread application anymore)
- new o365_mu_process script is now completing all logic of the client site of the service. It is sending several bulks (every bulk has a predefined number of entities inside) and processing every bulk on the server site separately. When bulk is processed on the sever side, the client will resolve it and save new state of objects to the cache. The script would end with an error if any object was processed unsuccessfully.