implement more co-design scenarios

[gfursin]

when new crowdtuning engine is ready, gradually implement

• program benchmarking
• automatic program modelling (hierarchical execution time/energy/IPC modeling (collection of models), feature selection, run-time adaptation)
• optimal algorithm selection
• validation of algorithm scalability
• analysis of numerical stability
• crowdsource detection of program/compiler bugs

See

• https://hal.inria.fr/hal-01054763
• http://arxiv.org/abs/1506.06256