Merge pull request #866 from ddurnev/master

[RJA-xxx][fix]: don't fail when there are no build providers in app context
[RJA-1950][feature] - Define databag storage
Merge pull request #867 from rsvato/databag-templates

[RJA-1950][feature] - Define databag storage
[RJA-185][feature] rest and UI for scheduling env workflow execution
Merge pull request #868 from bugzmanov/cli

[RJA-185][feature] rest and UI for scheduling env workflow execution
[RJA-xxx][fix]: resolve circular dependency between AgentServiceContext and AgentTrackerContext
Move actorSystem to separate context