added requirements.txt

Requirements.txt includes sqlalchemy for later use
started work on sqlalchemy database

added a system schema file using sqlalchemy
will eventually be used to store urls so we don't have to
constantly be hitting the web

added requests to requirements.txt
(not a 'requirement' per say, but it does make things simpler)
added logging
Added sites.py, base class for rom sites

Added 5 new rom sites, so far each can be
queried for the roms it supports, and the urls
that roms can be found at
started EmuParadise

Emuparadise is started. Its different from other sites,
the rom pages have random numbers that appear to be ids,
but there is no pattern. There are also a ton more systems
on this site than any other. Gotta have some way to filter out the
most popular ones...