Add TurbSim to the homebrew automated builds and distribution system

[andrew-platt]

Is your feature request related to a problem? Please describe.
TurbSim is not currently distributed through homebrew. This would be a fairly quick and simple change to the homebrew recipe.

Describe the solution you'd like
Update the homebrew recipe.

Describe alternatives you've considered
None.

Additional context
I'm putting this as an issue so we don't forget about it.