[util/design] Create a make-ip script that generates directory structure and boilerplate files

It would be really nice to have a simple make-comportable-ip script that automatically creates the directory structure and basic files needed (similar to how fpvgen, uvmdvgen or make_new_dif work). This would make the process of creating a new comportable IP a bit less cumbersome and faster, since we currently just manually copy these files over from other existing IPs.

Files that could be generated with such a script:

• prj.hjson
• example hjson
• checklist markdown
• documentation markdown
• fusesoc core file
• empty lint waivers
• empty RTL shell