Import the JSON-RPC Perl module, version 1.03, into pkgsrc.

JSON::RPC is a stateless RPC protocol which uses JSON over HTTP. All request
and response data is transferred as JSON.
Add the KGB IRC bot, version 1.31, to pkgsrc.

KGB is a system that provides notifications on IRC for commits made to Git,
Subversion and CVS repositories. It uses two components: a server, which
runs the IRC bot, and a client, which is hooked into the repositories and
sends the notifications to the server.