- implemented gfm selection and dynamic user needed count
- implemented minor changes in task handling

- implemented gfm selection and dynamic user needed count
- implemented minor changes in task handling

#40 feat: adding mysql connect as injection, feat: implementing in memory database for tests, move fltrail.sql to test/resources/database, so it can be used in test for building the inmemory database

* and removed in front end

#77 create Table for Peer2PeerFeedback
#78 db communication (create new entry)
#79 implement createPeer2PeerFeedback
#80 adjust view for student (givefeedback)