Add reified types as kotlin parser extensions

[digitalbuddha]

Currently the api for creating a middleware parser is clunky. When creating a parser one must pass both a generic of the type as well as a class token. With kotlin we can created a better version of the middleware parser factories which take advantage of reified types. This would allow a user to only have to pass a generic without needing to also need to pass in a Class

[bishiboosh]

@digitalbuddha would this be through replacing the current middleware classes, or via new middleware-*-kotlin packages ?

[digitalbuddha]

Ideally new as to not be a breaking change

[bishiboosh]

I'll try to see if I can do a PR for that