Socket integration with Process

[philpep]

I'd be nice to have bidirectionnal intégration between socket and process modules.

• which process opened this socket ?
• which sockets open this process ?

For instance:

>>> host.socket('tcp://22').process
<process sshd (pid=17542)>
>>> host.process.get(pid=17542).sockets()
[<socket tcp://22>] # this object does not exist yet, it has to be defined

[ruimoreira]

@philpep do you mind if I give. this a try ?