New regression in python

[epernod]

This is a new version of Regression using SofaPython3. Feel free to improve it.
TODO:

• Remove unnecessary test code on numpy export, as soon as we agree on the formart
• Move all code of file/folder into a several files
  • For folder and scenes parsing
  • for code on numpy array comparison
• Hide SOFA logs
• Improve end report format
• Add CSV format
• Create branch with new reference files
  • Test it in a SOFA pr with a ci-depends-on
  • Compare reference to the old ones

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Style based on .regression-test file but the last argument is the number of keyframe to test:
for example:
demos/mydemo.py 4000 1e-3 1 100
100 step will be tested with a threshold of 1e-3.
key frame will be: [0 40 80 ... 4000]*dt so 101 values.

---

Right now, at each key frame, full distance between the ref dofs and simulated dofs is computer.
totalError = sum(fullDist) accumulated over all key frames.
errorByDos = sum(fullDist)/nbrDofs accumulated over all key frames.

Computation is done using numpy array. Maybe better metrics could be used.

---

example of output:

Compare All sets: 100%|##########| 1/1 [06:30<00:00, 390.56s/it]
Scenes.regression-tests: 100%|##########| 6/6 [06:30<00:00, 46.54s/it].44it/s]
### Number of sets Done:  1
### Number of scenes Done:  6
### Number of scenes failed:  2
### Success: ../SofaLnRobotics/scenes\benchmarks/Bench_Heart_Judkins_Left.py | Number of key frames compared without error: 101
### Failed: ../SofaLnRobotics/scenes\benchmarks/Bench_Heart_Judkins_Right.py
    ### Total Error per MechanicalObject: [0.0010049364875422493, 0.0009830053353054394]
    ### Error by Dofs: [1.4074740721880243e-07, 3.991089465308321e-07]
### Success: ../SofaLnRobotics/scenes\benchmarks/Bench_Heart_SpireCatheter.py | Number of key frames compared without error: 101
### Success: ../SofaLnRobotics/scenes\benchmarks/Bench_inHeart_01_Judkins_Left.py | Number of key frames compared without error: 101
### Success: ../SofaLnRobotics/scenes\benchmarks/Bench_inHeart_01_Judkins_Right.py | Number of key frames compared without error: 101
### Failed: ../SofaLnRobotics/scenes\benchmarks/Bench_inHeart_01_SpireCatheter.py
    ### Total Error per MechanicalObject: [0.021162743293277383, 0.019589862858611747]
    ### Error by Dofs: [3.023249041896769e-06, 7.953659301100991e-06]

[epernod]

New edits:
rename files:

• SofaRegressionProgram.py -> main script to launch the regression
• RegressionSceneList.py -> parse .regression-test file to list the scenes to tests and check if references are availables
• RegressionSceneData -> parse reference files, run simulation and perform dof comparison

Add check and send error if MechanicalObject size is not the same between ref and current simulation