Manual merge of nitrogen changes to H_Abstraction groups.

Hopefully nothing went wrong here...
Manual merge of nitrogen changes to H_Abstraction family rules.

May be missing changes to names of groups..
Manual merge of thermo groups Group
Manual merge of nitrogen changes to Radical group for thermo groups.
Manual merge of nitrogen changes to Ring corrections for thermo groups.
Continued manual merge of nitrogen rules to H_Abstraction family
Manual merge of nitrogen changes to R_Addition_Multiple_Bond family;