added HB mult from a hybrid of aces3/xreom_rhf_pro.sial and earlier uncommited attempt.
added HB mult from a hybrid of aces3/xreom_rhf_pro.sial and earlier uncommited attempt.

added B(HB) mult using full symmetry as in aces3/xreom_rhf_pro.sial

UFParLab/aces4,UFParLab/aces4,madbosun/aces4,madbosun/aces4,madbosun/aces4,UFParLab/aces4,UFParLab/aces4,madbosun/aces4