ATR-26657: moving GN1 chains to Physics menu
As mentioned in ATR-26657, two chains have been moved from the Dev to the physics menu, these are:
- HLT_j80c_020jvt_j55c_020jvt_j28c_020jvt_j20c_020jvt_SHARED_3j20c_020jvt_bgn182_pf_ftf_presel2c20XX2c20b85_L1J45p0ETA21_3J15p0ETA25
- HLT_j80c_020jvt_j55c_020jvt_j28c_020jvt_j20c_020jvt_SHARED_2j20c_020jvt_bgn177_pf_ftf_presel2c20XX2c20b85_L1J45p0ETA21_3J15p0ETA25
They've been assigned the PrimaryLegGroup, tagging @cpollard and @lbeemste for information, as well as @khoo and @lidiaz.