[scripts] A re-write of the benchmarks script

[th-skam]

Existing script was using git branches for the benchmarks. New script is using different scenes. Easier to use.

We can have another one for git changes if we want to automate benchmarking a build although sofa has some tools for that already.

[epernod]

to be sure I understood, you are running a scene and compare results against reference file?
It might be useful to merge that work with the Regression scripts no?

[th-skam]

to be sure I understood, you are running a scene and compare results against reference file? It might be useful to merge that work with the Regression scripts no?

No automatic comparison here. I only substituted the old file that used git branches to run and gather the results.
The git-based approach was faulty because you really had to prepare your branches beforehand and take care to switch branches etc in case of a SOFA crash.
The log output here is better as well.