Draft: Add missing subroutines from libgridman

What is the new feature

Make libfortran-support available for libgridman.

How is it implemented

Sync modules with libgridman and add missing subroutines. See https://gitlab.dkrz.de/icon-libraries/libgridman/-/merge_requests/7

Mandatory steps before review

• Gitlab CI passes (Hint: use make format for linting)
• New feature is covered by additional unit tests
• Mark the merge request as ready by removing Draft:

Mandatory steps before merge

• Test coverage does not decrease
• Reviewed by a maintainer
• Incorporate review suggestions
• Prior to merging, please remove any boilerplate from the MR description, retaining only the Please describe your feature in a couple of words and describe important implementation details of the feature section to maintain
• Remember to edit the commit message and select the proper changelog category (feature/bugfix/other)

You are not supposed to merge this request by yourself, the maintainers of fortan-support take care of this action!

src/mo_util_sort.F90

@@ -701,8 +701,8 @@ CONTAINS
       t_p = permutation(i)
       DO h = i - 1, 1, -1
         IF (t >= a(h)) EXIT
-        a(h + 1)         = a(h)
-        permutation(h+1) = permutation(h)
+        a(h + 1) = a(h)
+        permutation(h + 1) = permutation(h)
       END DO
       a(h + 1) = t
       permutation(h + 1) = t_p