[fix] endlich

asfasf
[new] Added CategoryDAO
[update] extended category model

Made Rest get static to simpler use!
[update] Updated Models with  Ids and constructors
[update] Categories get read from JSON
[update] working data fetching from node server
[new] Added a way to fetch the question

Questions are getting fetched at the start of a game.
[fix] Categories contain now correct quizies
[fix] changed gitignore
[fix] trying to clean git
[remove] _Quizio.csproj is not needed
[remove] Quizio.v12.suo should not be stored in git
[remove] removed some views that are not needed
[new] quiz working, but result not yet
[new] result of soloquiz working

yeah
[new] spielbeenden button
[new] Timer and Progressbar

- added Timer functionality
- added progressbar
- added resulttime
- added resultpage -> timedout questions
- added some individual stylings
- altered some hardcoded values
- fixed an issue with quiziterations
[new] Ranking DAO & database fetch

- added RankingDAO
- created Rest Route
- Test ok
[new] rest route update

- update ranking put
[new] implemented result / ranking saving

- user id added
- ranking dao with update func
- REST put method added

missing:
ranking reload on game finish (probably with refresh button on ranking
page for simplicity)