Resolves initial setup and commit for adding typescript support to radon.js

[ghost]

##Initial Commit to Add Typescript Support:

• Adds typescript to project as dev dependency
• Adds types/ dir
• Defines a few interfaces for library entities

This is not done yet

Will provide tests and finish out the definitions in next push.

[hlmitchell]

This is cool, thanks for your contributions.

[ghost]

Thanks! Will spend some time writing some tests tonight!

[G0ldenSp00n-zz]

@MiguelSolano Were you going to push your test up, so that they could be merged with this PR.

[ghost]

Absolutely, just has taken me a minute to get time to wrap them up. They are still not done yet, but I do intend to get them done.