Let's tell the caller what channel_type they got!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: JSON-RPC: `fundchannel`, `multifundchannel`, `fundchannel_start` and `openchannel_init`: new field `channel_type`.
Any file in this directory which is executable and whose name only
consists of alphanumeric characters, space, '.', '-' or '_' will be
automatically loaded when lightningd starts (unless suppressed with
commandline options).