Add File Level Annotations

[BryonLewis]

This adds a model for file level annotations. This will be needed to quickly look at results of an audio file as well as for the classifiers.

• Added RecordingAnnotation - to indicate the file level annotation for a file. It is tied to a user and multiple users can have an annotation status for a file to hopefully allow inter-annotator agreement on species.
• Added Confidence and model fields to annotations to allow for computed annotations to be visualized with multiple confidence values
• Added fileAnnotations to the recording endpoints to return this information
• Added a simplified PUT/PATCH/DELETE for the recordingAnnotation level

TODO:

• Design of Recording Annotation editing. Needs to be displayed in main list (at least the top confidence levels, maybe top 10?). Owner should be able to see all user annotations where as others should only be able to see their own annotations. They should be able to assign a species and a confidence level to each annotation.
• Probably make an 'Annotations' button which will bring up the tabs for Recording/Sequence/Pulse. There would then be a separate button o bring of the Recording List.
• Add descriptions to Recording/Sequence/Pulse for the annotations to indicate the level and what they mean.
• Testing of the recordingAnnotations endpoints
• Adding the Label level annotations to other endpoints to display/vidualize them. Need to decide if I only show the current user's or other users and if I show a ranked list ordered by confidence.
• Add in the capability to list multiple species based on a confidence level (computer computed)
• UI for the new file level annotations (Way to visualize outside viewer as well as inside the spectrogram viewer)