Add SIF assembler for Boolean network generation
Add SIF assembler for Boolean network generation

bgyori/indra,bgyori/indra,pvtodorov/indra,johnbachman/indra,pvtodorov/indra,sorgerlab/belpy,pvtodorov/indra,jmuhlich/indra,johnbachman/belpy,johnbachman/indra,johnbachman/belpy,sorgerlab/indra,sorgerlab/indra,jmuhlich/indra,bgyori/indra,sorgerlab/indra,sorgerlab/belpy,jmuhlich/indra,johnbachman/belpy,pvtodorov/indra,johnbachman/indra,sorgerlab/belpy