Feature/expand models running

Make the VEGA models possible for running and visualization from the ToxTree UI. The changes are:

The files are now ui-prediction.XX (instead of ui-toxtree.XX)
Running in VEGA mode required two URL parameters: algorithmFilter=VEGA&multiModels=true.
Running in ToxTree mode, requires only one: algorithmFilter=ToxTree.

ideaconsult / Toxtree.js