Add to package managers like homebrew #15

Would be nice to install this using a package managers

brew install tfjson
choco install tfjson
scoop install tfjson

If you think this is a good idea then we could emulate the terraform landscape tool test formula

This project may be too niche according to the Acceptable Criteria and so it might be best to maintain our own tap.

The following criteria should be done and I can help when I have time.

• document how to build this tool
• add a --version or -v that ties into the tag
• add a homebrew tap
• document how to install on osx using the tap
• after we achieve the above, a non author can submit it homebrew to be officially added

Let me know what you think and thanks for making a great tool!

Reference:

• Wrote up something similar for another terraform tool Add to package managers like homebrew flosell/iam-policy-json-to-terraform#3