Currently images are trying to be recognised on every startup. However, we should be introducing a boolean or similar which will mark the particular image as #triedToBeRecognised and next round image recognition service won't be trying to recognise that image.

E.g. one image is recognised by service as 'panda' but the confidence is low and it's not been registered to the system. Next round, the 'panda' image will try to be recognised one more time which is not a good idea.

Acceptance Criteria:

• Previously detected images should be marked and filtered by the Service
• Uploaded images should trigger the service if there is no tags present, else this action should mark the image as well
•  New criterion 2018-10-23: If a user edits the asset and uploads a new binary, recognition should run again on save.