Add homebrew recipe to submit to hombrew-core
Add homebrew recipe to submit to hombrew-core

This creates a working draft homebrew recipe.
After merging the changed build process this recipe
can be adapted to use a tagged version within the offical
goad repository and submitted to the homebrew-core
repository.

cwaltken-edrans/goad,goadapp/goad,goadapp/goad,goadapp/goad,cwaltken-edrans/goad,cwaltken-edrans/goad