allow windows programs to call dssp/mkdssp command from wsl; rework biopython on windows (PDB -> dssp -> fasta)

dssp-wsl

Converting PDB (Protein Data Bank) file format to DSSP file format is required for generating datasets of peptides and their secondary structures.

Such a task should be permitted when using BioPython. However, on Windows, the lack of the program dssp stucks everything.

Fortunately, linux distros provide dssp or mkdssp installation, and Windows Subsystem for Linux is an easy-to-get thing. We hereby provide this simple script to wrap calling dssp/mkdssp from wsl, and you can install it via:

pip install dssp-wsl

Other than installing dssp-wsl On Windows, you should also install WSL (see hints), and use sudo apt install dssp inside the subsystem. Then you rework BioPython.