ncremap add nSnowLayers dimension to pdq_opt for MPAS-SI. ncremap fix sgs_frc option handling that 5.1.0 broke for MPAS-SI, CICE. ncremap pass sgs_nrm for CICE and not others.

All operators support FL_LST_IN_APPEND by default and -H to turn it off. ncremap remove --correct_areas since TR 2.1.12 made this default and eliminated option. ncremap replace --mono3 by --method mono3 since TR 2.1.14, 2.1.15 changed option name.

map checker examines global attributes map_method, no_conserve, noconserve to determine whether weights are intentionally non-conservative

map checker examins global attributes map_method, no_conserve, noconserve to determine whether weights are intentionally non-conservative

ncks chk_map add INFO not scary WARNING when weights are intentionally non-conservative. ncremap replace ConvertSCRIPToExodus (no longer exists) by ConvertMeshoExodus.

ncrename stdin search for input filenames works, though cannot copy from NCZarr to POSIX. ncks stdin search for input filenames works.

Abbreviate BitGroom as 'btg' not 'bgr'. Change BitGroomBitRound and 'bgb' to BitGroomRound and 'bgr', respectively

Fix AppVeyor failures

Tidy nco_fl_utl.c to prepare to allow stdin filename access for all operators. Fix NCZarr->POSIX write issue by eliminating Lat/Lon dimensions from in_zarr4.cdl