Improve prompts and options

[mtaku3]

This may broaden use cases. Including,

• 6eaa4196abb57d0a6a2bbd0fdf978d2705212161 : fix issue showing project name instead of namespace when namespace prompt.
• de72777d9cd9f8669998084a62e9332225630643 :
  • Allow any string for project name and namespace. Microsoft recommends to use PascalCase for namespace. But this is not must-do and users should be allowed to use any string as they want.
  • Allow folder name different from project name. Folder name doesn't necessarily have to be the same with project name.
• 5a915231e917d63c6c9519de306ee10f809d8132 :
  • fix not to singularize enum field. I think it should not be singularized. I removed that feature but can be optional.
• d0d18bf67626366cf273fe9f390125fd92630d88 :
  • Make singularize and pluralize of collections' name and items' name optional. According to PocketBase documentation, there's no specification to use plural for collection's name. So I made it optional (prompts at first time to generate code).

[iluvadev]

Thanks a lot Very good contributions! :) I can't right now, but i will review it in a few hours

[iluvadev]

Hi, I reviewed de code. I like so much. I made some changes, minor fixes. Thanks!