Satori/LocalhostProposal

Currently Satori only does discovery on remote systems. A new capability should be added so that Satori can discover system information about the local system.

Impact

 * 1) DNS data would not be available
 * 2) SSL data would not be available

Implementation

 * 1) Accept the literal term `localhost` as the netloc.
 * 2) Bypass any SSH code
 * 3) A system information plugin should be required. It wouldn't be logical to do local discovery without system info data.