Create a new script nrnivmodl-core

[alkino]

The old bash script is limited so do a new one with python >= 2.7

The idea behind the rewriting is having several options in the same time. Right now if you want a backend with mod2c or nmodl you need to compile twice CoreNeuron, let it be an option of nrnivmodl-core.

Supported features

• [x] ISPC
• [ ] Openacc
• [ ] omp
• [ ] gpu
• [ ] Installed nmodl
• [ ] nmodl compiled
• [ ] mod2c compiled

[alkino]

This it too hard

[pramodk]

keeping this as draft so that we don't accidentally delete this branch. we have some useful work here that will be needed eventually.