URBNG-342: Create GPS task answer fragment

There is still some code missing in GpsTaskAnswerFragment (Im waiting for reply from ux and had some other questions), but I wanted to show what I did as quickly as possible. I made some changes in other part of application to include gps and I want your opinion on this. Also I was not sure in parts between "MISSING CODE" in GpsTaskAnswerFragments. I thought it would be easier to just show it with questions in comments.