Expose quote output to user in file viewer

[KronicDeth]

To test #59, I've added the ability to ask an ElixirFile for it's quoted form so it can be compared to Elixir's native quoted form from Code.string_to_quoted/2 by talking over JInterface to intellij-elixir's IntellijElixir.Quoter. I should expose the resulting quoted form to the use so that they can visual the output from quote/2 when making their own macros.