Add simple ply file to test congruent set generation
Add proposed bug fix, need to run experiment on it and find what is going wrong
Add copy constructor
Add guard to detect invalid pairs arrays
Disable pairs pairing between congruent quad and basis to avoid unconsistent configurations
Update base indices at the same time than vertex coordinates
Update base ids according when re-ordering vertices
Improve models initialization: models with few samples (less than n) are now used fully (no resampling or subsampling).
Add simple test procedure with a fixed base (commented)
Fix congruent set generation
More complex example (noise, additional points)