Write BCs restart files from fv_dyn_restart_output

[DusanJovic-NOAA]

Description

Thsi PR updates fv_dyn_restart_output subroutine in driver/fvGFS/fv_ufs_restart_io.F90 by adding a call to fv_io_write_BCs to write out BCs restart files from the ufs-weather-model write component. This is used by nested domains.

How Has This Been Tested?

ufs-weather-model regression tests on Hera

Checklist:

Please check all whether they apply or not

• [ ] 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

[jkbk2004]

@laurenchilutti Please, go ahead to merge this pr. All tests are done on https://github.com/ufs-community/ufs-weather-model/pull/1722