Change variables named value to other variable names

[mcallic2]

Description
Fortran added the value type declaration in 2003. This PR suggests changes to these variable names, and does not include any directories/modules that are either no longer used and/or deprecated (i.e. axis_utils, mpp_io, fms_io, etc).

Fixes ##1328

How Has This Been Tested?
autotools with gcc/13.1.0, netcdf/4.9.2, mpich/4.1.2, hdf5/1.14.1-2, libyaml/0.2.5

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules
• New check tests, if applicable, are included
• make distcheck passes

[bensonr]

In axis_utils2.inc, you are keeping the 'value' name, where as the others are shortened to _x_val where the x is shorthand for the type. I think it would be good to stick to a single convention throughout.

[mcallic2]

@bensonr I love me some cohesiveness, these variable names are changed in d7e68fd

[rem1776]

@mcallic2 looks like an old value snuck in from the main merge:

mosaic2.F90(399): error #6303: The assignment operation or the binary expression operation is invalid for the data types of the two operands.   [STRING]
         value(parse_string) = string(first:length)
-------------------------------^

[mcallic2]

@mcallic2 looks like an old value snuck in from the main merge:

mosaic2.F90(399): error #6303: The assignment operation or the binary expression operation is invalid for the data types of the two operands.   [STRING]
         value(parse_string) = string(first:length)
-------------------------------^

should be fixed now