VASP Wann90 interface

[isamathr]

Create the input file of wanniertools software based on VASP and Wannier90 output

The Process requires

1. A self consistent calculation with VASP
2. Wannier functions construction with Wannier90
3. Band structure calculation with VASP

[quanshengwu]

Dear Ilias,

Thanks for joining the development of WannierTools.

I read your code create_wanniertools_input.py. It's well written. I like it.
Before merging it into the master branch, could you please make the code more user-friendly?

1. Provide a user guide at the top of create_wanniertools_input.py.
2. For all parameters, It's better setting a default value such that this script can be run to generate a wt.in file. For user, it will be frustrated if there is no output.
   Best,
   Quansheng

[isamathr]

Dear Quansheng,

Thank you for your kind words.
I modified the code to make it more user friendly according to your suggestions. You can have a look at the updated file 'create_wanniertools_input.py'

Best regards,
Ilias