Add baseline check before triangulation

[ayushbaid]

COLMAP checks the angle of the rays used in triangulation and rejects them if it is too low.

I wrote a unit test which confirms the behavior of failures due to small baseline when there is a 2px error in the measurements (quite common scenario).

We need to add this check in the data association pipeline.

[akshay-krishnan]

The PR was not merged because metrics showed no improvements. I think this check must be done and we must investigate why it does not make any difference. Maybe we will discover other issues.

[akshay-krishnan]

Its possible our tracks already have a good triangulation angle, in which case this check still makes sense for datasets we would use in the future.