Add support (or documentation) for overloads by accept header.

[MicahZoltu]

It would be great if the following worked and the proper method was called based on what Accept header the caller supplied.

@Path('')
class Controller {
	@GET
	@Path('/getFruit')
	@Produces('application/json')
	async getFruitAsJson(): Promise<Response> {
		const repsonse = new Repsonse();
		response.body = { fruit: "apple" };
		return response;
	}
	@GET
	@Path('/getFruit')
	@Produces('text/plain')
	async getFruitAsString(): Promise<Response> {
		const repsonse = new Repsonse();
		response.body = "apple";
		return response;
	}

If this is currently supported and just undocumented, then consider this ticket a request for documentation.

[joesonw]

This currently is not supported. This feature goes into V1.1 plan, which also including identify routes by @Consumes where handles request Content-Type header.

[joesonw]

You can also leave other suggestions in #7. Thanks again for the contributions. Contributions.md is on the way.