Add 1st netcdf example based on watershed model #47

Job	Run time
Lint	7s
Install viz environment (ubuntu-latest, 3.9)	1m 54s
Install gw3099 environment (macos-latest, 3.9)	3m 36s
Install gw3099 environment on linux (3.9)	6s
Install viz environment (ubuntu-latest, 3.10)	2m 17s
Install gw3099 environment (macos-latest, 3.10)	4m 23s
Install gw3099 environment on linux (3.10)	7s
Install viz environment (ubuntu-latest, 3.11)	2m 1s
Install gw3099 environment (macos-latest, 3.11)	4m 45s
Install gw3099 environment on linux (3.11)	4s
Install viz environment (macos-latest, 3.9)	3m 55s
Install gw3099 environment (windows-latest, 3.9)	8m 35s
Install viz environment (macos-latest, 3.10)	2m 9s
Install gw3099 environment (windows-latest, 3.10)	8m 35s
Install viz environment (macos-latest, 3.11)	2m 36s
Install gw3099 environment (windows-latest, 3.11)	8m 34s
Install viz environment (windows-latest, 3.9)	11m 1s
Install viz environment (windows-latest, 3.10)	10m 12s
Install viz environment (windows-latest, 3.11)	9m 3s
	1h 24m 0s

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