Added DEFCOIN (DFC) support to networks.py
Added DEFCOIN (DFC) support to networks.py

pycoin/pycoin,zsulocal/pycoin,zsulocal/pycoin,XertroV/pycoin,Magicking/pycoin,XertroV/pycoin,shayanb/pycoin,richardkiss/pycoin,richardkiss/pycoin,mperklin/pycoin,moocowmoo/pycoin,shivaenigma/pycoin,mperklin/pycoin,pycoin/pycoin,shayanb/pycoin,shivaenigma/pycoin,moocowmoo/pycoin,Magicking/pycoin