ncclimo: Verify that ELM glb_avg is accurate; automatically determine sgs_frc, area_wgt from prc_typ, now no var_xtr necessary for rgn_avg

ncclimo: Simplify life by automatically determining hrz_dmn from area_nm in first file, remove hrz_dmn input option

nco_mss_val.c: Clarify nco_mss_val_cnf() WARNING message when missing values of binary operation differ. ncclimo: delete_miss(msk_[nrt,sth]) to eliminate have different _FillValue errors. Add parentheses to enclose global area_wgt before .avg()

nco_vrt_ntp() set hybrid grid output temporal size tm_nbr_out to size of PS time dimension if it exists and there are no record dimensions

Update ncremap - change mono flag for mbtempest