* initial work on commit files
* minor improvements, grpc server interceptors and more
* compare file old sha and current sha
* added some validation steps
* config immutable, introduce temp repos dir
* handler added to standalone
* fix CI linter, fix minor bug on update
* wire generator files
This commit contains the following changes:
- Add `commits/calculate_divergence` API to calculate commit divergence of reference pairs
- Rename `serviceAccounts` to `service_accounts` to follow REST best practices
This change adds the following:
- create / delete branch
- basic error propagation from git to user (notfound, conflict, invalidinput)
- create repo root folder in server instead of service constructor
