Fi/depth warper tests

[edgarriba]

Work in progress to refactor DepthWarper

[codecov]

Codecov Report

Merging #73 into master will not change coverage.
The diff coverage is 100%.

@@          Coverage Diff           @@
##           master    #73    +/-   ##
======================================
  Coverage     100%   100%            
======================================
  Files          21     21            
  Lines         795    976   +181     
======================================
+ Hits          795    976   +181

Impacted Files	Coverage Δ
torchgeometry/losses/dice.py	100% <ø> (ø)	⬆️
torchgeometry/utils.py	100% <100%> (ø)	⬆️
torchgeometry/core/transformations.py	100% <100%> (ø)	⬆️
torchgeometry/core/pinhole.py	100% <100%> (ø)	⬆️
torchgeometry/core/depth_warper.py	100% <100%> (ø)	⬆️

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