Updates and Bug fixes

Documentation Update. Changes to log-actions to update selection review.
Stream2Excel

Introduction of Stream2Excel tool which allows users to process multiple
files as a stream and subsequently export excel files of the detections
for each individual file in the strea,
Readme Files

Readme files for each log action in the USV template detection procedure
were added.  One extra log action was also deleted.
Selection Review Update

Changes to selection review to fix minor bugs, add warnings/errors when
needed, and ensure un-reviewed detections are handled properly.