add TBtrans Interface tbtrans_init.py and its test files

[AsymmetryChou]

TBtrans Interface tbtrans_init.py

• TBtrans (Tight-Binding transport) is a generic computer program which calculates transport and other physical quantities using the Green function formalism. It is a stand-alone program which allows extreme scale tight-binding calculations. For details, see https://www.sciencedirect.com/science/article/pii/S001046551630306X?via%3Dihub.
• Output tbtrans input files (.nc) by extracting necessary information from deeptb-negf input files and predicting hamiltonian with deeptb model.
• Support "dptb run" in command line ("task": "tbtrans_negf")
• To run tbtrans_init.py, user need sisl package(https://zerothi.github.io/sisl/index.html)
• With tbtrans_init.py's output and TBtrans input RUN.fdf, user could run TBtrans.
  - later I would make the interface able to generate RUN.fdf automatically.

[QG-phy]

delete this print