Add tvOS Support

[tylervick]

I saw this project linked from #httpswift/swifter#111 and I love that it supports SSL.

I was hoping this project would have compatibility with tvOS to run a web server on the Apple TV. However, the Cocoapods installation reads:

[!] The platform of the target TVMLCatalog (tvOS 9.0) is not compatible with Telegraph (0.1.0), which does not support tvos.

I'm not sure if it'd be easy enough to add this to the supported platforms list, or if it would require more work. tvOS and iOS should share much of their functionality, so there's less of a gap than say with macOS.

[yvbeek]

Great to hear that you like it!

I've just released a new version that supports tvOS, version 0.2.0.
There's also a tvOS example, which is basically the same as the iOS one.