Gopher protocol server

[emery at ...261...]

For anyone looking to browse file systems on Genode over a network,
I have a Gopher protocol server.

Its not very well tested (or thought out), so I'm keeping it in
my feature repo at app/gopher_server.
https://github.com/ehmry/genode-emery

My only use for it so far has been writing logs to a ram_fs, then
reading them with lynx. Gopher is a more or less dead protocol, but
its also dead simple.

Cheers,
Emery