Initial draft of "My Tasks" subscreen.

- Shows list of accepted jobs (JobRequest in state PENDING and
  DISMISSED)
- Each entry shows title of job and contact of employer, current status
  of request, additionaly color marker is shown (red - DISMISSED, blue -
  PENDING)
- Requests in state PENDING could be cancelled (transite to state
  DISMISSED)
Add popup with job details to "My Tasks" subscreen.
Merge branch 'proto-gsn' of github.com:M-Research/TimurService into proto-gsn