add regional inline post capability

[junwang-noaa]

Description

Add inline post capability for regional applications LAM and HAFS

Solution

Add inline interface to call post subroutine for regional applications.

Related to

Code changes will be made in FV3, and a regional inline post test will be added.

[junwang-noaa]

A general interface between the write component state and inline post working for both global and regional post has been designed. Doc is here

[junwang-noaa]

Jili set up a regional interface post_lam.F90 and tested in hafs case (post control file: postxconfig-NT-hafs.txt). The output file has issue with grids when using wgrib2 to check the file

[junwang-noaa]

Jun looked at Jili's results and found the grid information is missing and all the fields have value 0.0 in in the output hafs post files. Jun fixed the maptype for the regional lat/lon grid, the post has correct grid info. Now the issue with undefined value on regional output domain shows up (global application does not have this issue). So far the undefined value is zero in the post variables. Now we need to identify the points with undefined value (currently marked as zero) and the points with valid value zero and reset the undefined value from zero to post undefined number before we can call post subroutines.