* feature: add User entity to Account
* test: new file store creation test
* test: add FileStore persist-restore tests
* test: add GetOrCreateAccountByUser Accountmanager test
* refactor: rename account manager users file
* refactor: use userId instead of accountId when handling Management HTTP API
* fix: new account creation for every request
* fix: golint
* chore: add account creator to Account Entity to identify who created the account.
* chore: use xid ID generator for account IDs
* fix: test failures
* test: check that CreatedBy is stored when account is stored
* chore: add account copy method
* test: remove test for non existent GetOrCreateAccount func
* chore: add accounts conversion function
* fix: golint
* refactor: simplify admin user creation
* refactor: move migration script to a separate package
* feature: add config properties to the SyncResponse of the management gRpc service
* fix: lint errors
* chore: modify management protocol according to the review notes
* fix: management proto fields sequence
* feature: add proper peer configuration to be synced
* chore: minor changes
* feature: finalize peer config management
* fix: lint errors
* feature: add management server config file
* refactor: extract hosts-config to a separate file
* refactor: review notes applied to correct file_store usage
* refactor: extract management service configuration to a file
* refactor: simplify management config
