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.

There was a mess made when remote synthesis
data were specified as hdlmake's run arguments.
Makefile was incorrect and remote synthesis was
impossible.