Benchmarking

[lupoglaz]

We need benchmarks for speed and memory usage for all the layers. Right now it's hard to predict run time of a new algorithm.

[lupoglaz]

Commit 2489862
added basic benchmarks for FullAtomModel.Angles2Coords, RMSD.Coords2RMSD and ReducedModel.Angles2Backbone. Also, added comparative time scales from LSTM