Add Volume.CubicHectometer

[CPMOliveira]

It is a unit very used in hydrology.

[angularsen]

Hi, thanks for contributing. You're missing the generated code, just run generate-code.bat, commit and push that to the branch.

Please see https://github.com/angularsen/UnitsNet/wiki/Adding-a-New-Unit for detailed instructions.

[tmilnthorp]

Should new units be added to the end of json files? I know we don't preserve enum ordering (it's alphabetical). But we could and it would allow persistence of enum values.

[angularsen]

Fair question, I haven't really paid much attention to it so far. I guess I would favor keeping it alphabetically, but I have no strong opinion on this.

[CPMOliveira]

Hi, thanks for contributing. You're missing the generated code, just run generate-code.bat, commit and push that to the branch.

Please see https://github.com/angularsen/UnitsNet/wiki/Adding-a-New-Unit for detailed instructions.

I'm sorry, but I'm new here. Thanks for the correction and inform the instructions.
Great job!

[angularsen]

@CPMOliveira No problem, also you can keep this pull request. No need to close it, just push new commits to the same branch patch-1.

[CPMOliveira]

Moved to #638