GWE-GWE exchanges now working. Other clean-up for code uniformity #97

Job	Run time
Check format	1m 30s
Smoke test	3m 41s
Build	1m 23s
Parallel testing (ubuntu-22.04)	20m 43s
Test gnu fortran (ubuntu-22.04)	23m 40s
Test intel fortran (ubuntu-22.04, intel-classic, 2021.7)	24m 6s
Parallel testing (macos-12)	47m 33s
Test gnu fortran (macos-12)	31m 43s
Test intel fortran (macos-12, intel-classic, 2021.7)	41m 35s
Test gnu fortran (windows-2022)	32m 5s
Test intel fortran (windows-2022, intel-classic, 2021.7)	34m 12s
	4h 22m 11s

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