Implement 3rd layer single event screenshot and movie making and fetching prev/next image per source id

[mudhoney]

• Improve error handling
• Handle Validation errors seperately, also with JSON requests,
• Fix some doc urls
• Create HTTP POST endpoints for movie and screenshot creating
• Add JSON states to screeshot and movies tables,
• Handle both takeScreenshot with events and eventsLabel and postScreenshot with eventState seperately,
• Improve some error handling , more 500 s now
• Created db functions to fetch closest images per sources
• New eventsManager to handle both new events JSON and old eventsString and label
• Implement new single event handling in image frames ( required for movie and screenshots )
• Movie functions reQueueMovie , downloadMovie, queueMovie, takeScreenshot, downloadScreenshot to new logic
• Make region of interest free of params and options
• Change queue job to handle new events ,
• And tests