TMSS-259: Change format according to Jan Davids suggestions. Change list input to tuples and add caching.

TMSS-259: Add tests for angular separation endpoint. Improve speed on sunrise endpoint by reducing precision.

TMSS-259: Remove optional slash and api_view again from /schemas/ and /station_groups/ because it breaks json ref resolution and more

TMSS-459: Add new endpoint 'angular_separation_from_bodies' and backend logic to calculate distance of a pointing from solar system bodies

Sprint-15 Front End Merge

See merge request !271

Station Reset Issue fixed

# Conflicts:
#	SAS/TMSS/frontend/tmss_webapp/src/services/schedule.service.js

Resolved Conflicts

# Conflicts:
#	SAS/TMSS/frontend/tmss_webapp/src/services/schedule.service.js

Resolved Conflicts

Custom Issue Fixed.

QAReporting

Updated changes on multiple custom stations

Changes updated

Resolve TMSS-435

Closes TMSS-435

See merge request !269

TMSS-435: Return json object with sunrise, sunset, day and night times at sun_rise_and_set call, handle multiple stations and timestamps provided as parameters

update the code for review comments