adding HT940 to physics menu

Ines Ochoarequested to merge
miochoa/athena:23.0-miochoa-HTupdate into 23.0

Adding new HT chains (based on small-R PFlow jets) to Physics_pp_Run3 menu with threshold moved down by 6%: HT940 (corresponding to previous HT1000). Tagging @xingguo and @cantel.

Merge request reports