Expose method to compute the length of the data from the msg hdr
Only allow conversion to the same sized Control Messages
Create rx.Call struct to keep track of the client-side of an RPC
Fix typos
Add std.c.linux.rxrpc here instead of in phobos
Add warnings for when ControlMessages aren't necessarily the right size
Add dependency on vibe.d
Remove private from imports because that is the default
Allow inout construction of DynamicMessageHeaders and the ControlListsLoopers
Vibe.d-ify Sockets

Calls and sockets are classes.
Sockets are factories for calls.
Move rx.d into the right package, so visibility issues go away