[Data Submission] Save timestamp when capturing current location

[shobhitagarwal1612]

Towards #2717

@gino-m PTAL?

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 5 lines in your changes missing coverage. Please review.

Project coverage is 60.89%. Comparing base (7cffa80) to head (6530ec6).

Files with missing lines	Patch %	Lines
.../firebase/schema/CaptureLocationResultConverter.kt	0.00%	3 Missing ⚠️
...n/tasks/location/CaptureLocationTaskMapFragment.kt	33.33%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #2719      +/-   ##
============================================
- Coverage     60.91%   60.89%   -0.03%     
- Complexity     1164     1165       +1     
============================================
  Files           265      265              
  Lines          6046     6053       +7     
  Branches        839      839              
============================================
+ Hits           3683     3686       +3     
- Misses         1893     1897       +4     
  Partials        470      470              

Files with missing lines	Coverage Δ
...ground/model/submission/CaptureLocationTaskData.kt	55.00% <100.00%> (+5.00%)	⬆️
...stence/remote/firebase/protobuf/ModelToProtoExt.kt	81.37% <100.00%> (+0.18%)	⬆️
...ion/tasks/location/CaptureLocationTaskViewModel.kt	44.44% <100.00%> (ø)
...n/tasks/location/CaptureLocationTaskMapFragment.kt	58.82% <33.33%> (-7.85%)	⬇️
.../firebase/schema/CaptureLocationResultConverter.kt	0.00% <0.00%> (ø)

[gino-m]

Why do we save the current time in two places, here and in the CaptureLocationTaskMapFragment?

@kenstershiro My initial intuition was that we should store timestamp when the user clicks "Capture Location" button, not when the OS gives a location update, which would usually be slightly sooner. The degenerate case would be if the OS stops giving location updates (no GPS signal, location services disabled) - in that case, would we want to capture the time "Capture location" was clicked, or the time the last location was known? Can you ask @lecrabe and @jo-spek?

[shobhitagarwal1612]

We wanted the formatted lat/lng for the info card. Removed the dependency of CaptureLocationTaskData from this class and directly created the formatted location text.

[shobhitagarwal1612]

Discussed with @jo-spek

His main concern is that no other task stores a timestamp. Putting this PR on hold until the discussion is finalized.