Added a non-working grizzly implementation

Its in the works...
Partially working custom enumerator
Second try...
Basic working BodyEnumerator
Can successfully complete the three basic tests of ping, stream, and echo.
Added support for when the route iteratee returns unused data. Its not pretty, but should work just fine.
Added two contrived tests to that end.
wip, showing some code to ross
use dummy path info
A few small tweeks
complete netty handler
doesn't work yet but adds a netty example
Makes /ping route work
Create a simple wrapper class for netty servers
Adds buffering body and auto-adding of content-length header
uses fold instead of foreach
Make Transfer-Encoding work
make port configurable
reading chunks not fun
still broken
Change handler type
makes reading request body from chunks possible