Allow for general dimension names in make_regional_mosaic

[uramirez8707]

Is your feature request related to a problem? Please describe.
If you have a diag_table with multiple regions you end up with files with different dimensions names than what make_regional_mosaic expects. For example:

"test_regional",         1, "hours",   1, "hours", "time"                                                              
"test_regional2",         1, "hours",   1, "hours", "time"                                                          
                                                                                                                       
#output variables                                                                                                      
 "test_diag_manager_mod", "sst", "sst", "test_regional",  "all", ".true." "10 30 20 40 -1 -1", 2                        
 "test_diag_manager_mod", "sst", "sst", "test_regional2",  "all", ".true." "5 10 20 40 -1 -1", 2

This will result in:
netcdf test_regional.nc {
dimensions:
x_sub01 = 21 ;
y_sub01 = 10 ;

netcdf test_regional2 {
dimensions:
x_sub02 = 6 ;
y_sub02 = 10 ;

make_regional_mosaic expects the dimension name to be have sub01 so make_regional_mosaic will fail for the second file.

See helpdesk ticket #5021146 for more info.

Describe the solution you'd like
Can make_regional_mosaic be modified to accept any dimension name?

Describe alternatives you've considered
Manually change the dimension name before calling make_regional_mosaic
Change this at the diag_manager level.

Additional context
N/A

[ngs333]

@uramirez8707
The consensus at the workflow meeting on 8/4 was to not update make-regional-mosiac at this time. This issue (or a related issue) will likely be looked at in the future since it was noted at the meeting that there should be a wider discussion on future grid needs in the workflow that NCTools will have to support.