* Cloud migrations: create snapshot and store it on disk
* fix merge conflicts
* implement StartSnapshot for gms client
* pass snapshot directory as argument to snapshot builder
* ensure snapshot folder is set
* make swagger-gen
* remove Test_ExecuteAsyncWorkflow
* pass signed in user to buildSnapshot method / use github.com/grafana/grafana-cloud-migration-snapshot to create snapshot files
* fix FakeServiceImpl.CreateSnapshot
* remove new line
