Add Rule::{forward,backward}_unified_rules declarations
Add Rule::{forward,backward}_unified_rules declarations

AmeBel/atomspace,ArvinPan/atomspace,inflector/atomspace,misgeatgit/atomspace,yantrabuddhi/atomspace,misgeatgit/atomspace,AmeBel/atomspace,yantrabuddhi/atomspace,ArvinPan/atomspace,inflector/atomspace,inflector/atomspace,ArvinPan/atomspace,rTreutlein/atomspace,misgeatgit/atomspace,yantrabuddhi/atomspace,inflector/atomspace,ArvinPan/atomspace,yantrabuddhi/atomspace,rTreutlein/atomspace,AmeBel/atomspace,inflector/atomspace,rTreutlein/atomspace,rTreutlein/atomspace,AmeBel/atomspace,yantrabuddhi/atomspace,AmeBel/atomspace,misgeatgit/atomspace,misgeatgit/atomspace,rTreutlein/atomspace