Available help options need overhaul

[Zeebrow]

There is no way to figure out how this app is actually working, without making assumptions and while listening to output of a debug run. Documentation will not necessarily solve the immediate issues

• main.py --help and main.py [action] --help display the same (incorrect) output
• Getting help for a particular plugin's case is far from intuitive (documentation)
• The only way to get --help is inherently broken (but still available anyways)

This is an issue for child plugin subparsers. The best I can understand is every parser is a parent parser, and in the case of main.py, the parent parser will always need some sort of child parser for complete (useful) output.