clean NN filter parameters to have unified HOP/LOP parameters interface
in order to be able to have generic script for HOP/LOP training, one need a unified API to pass parameters to NNVC. With this MR:
- the redundant parameters (using both nnlfoption and nnlfhop for example) is removed because it was not used
- the model name is changed to nnlfmodelname to be generic for hop/lop
When LOP will be merged, it can used the new unified parameters.