Signed-off-by: Pawel Szostek <pawel.szostek@gmail.com>

Conflicts:
	src/__main__.py

Signed-off-by: Pawel Szostek <pawel@pawel-lap.(none)>

--list enables people to list content of their modules.
Indentation makes easier visual recognition of the
content.

--clean forces hdlmake to remove modules fetched
from repositories. All unneeded folders are removed
either.