add consistency checks of HISTORY.rc selections

[gmao-rreichle]

Add the following consistency checks of HISTORY.rc selections to pre-processing:

1. Monthly-mean output is generated in post-processing for resource parameter POSTPROC_HIST>0 (formerly MONTHLY_OUTPUT>0). Monthly-mean values are accurate only if ref_time is 000000 in HISTORY.rc. Currently, there is only a comment in GEOSldas_LDAS.rc to this effect.
   Add a consistency check that verifies that for POSTPROC_HIST>0 all ref_time entries are 000000 in HISTORY.rc. Exit script and stop pre-processing if inputs are found to be inconsistent.

2. Owing to limitations in MAPL, HISTORY output in grid space (2d) does not yet work when running GEOSldas on EASE grid tiles. Currently, there is only a comment in the (fairly outdated) GEOSldas tutorial. Add a consistency check that verifies that output is in tile space (1d) whenever GEOSldas runs on EASE grid tiles. Exit script and stop pre-processing if inputs are found to be inconsistent.

cc: @gmao-jkolassa

[weiyuan-jiang]

1. one is addressed 2) we will add EASE grid factory the address broader issue

[gmao-rreichle]

Modifications are needed: If monthly output is requested and reftime is not 000000, the desired behavior is to exit. This needs to be checked in lenkf.j before GEOSldas runs.