Add PhoenixSwagger

[indocomsoft]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 111

• 5 of 5 (100.0%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.1%) to 96.273%

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Totals
Change from base Build 109:	0.1%
Covered Lines:	155
Relevant Lines:	161

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💛 - Coveralls

[indocomsoft]

@evansb I'm not sure how to test the swagger part since they are just "metadata" there.

[evansb]

Create a test that simply use the function and does nothing, add a comment saying it's because swagger

[indocomsoft]

Done.

Also a note to @sreycodes, swagger_path is a macro. The most relevant part from the source code is first line of this macro definition:

defmacro swagger_path(action, [do: {:__block__, _, [first_expr | exprs]}]) do
      fun_name = "swagger_path_#{action}" |> String.to_atom
      body = Enum.reduce(exprs, first_expr, fn expr, acc ->
              quote do unquote(acc) |> unquote(expr) end
             end)

      quote do
        def unquote(fun_name)(route) do

So basically the macro creates another function with the name swagger_path_create when we do swagger_path :create do for example.