Enclosed is a patch: wg: add support for peer names using a file in userspace

Disabled by default, build with WITH_PEERDATA=yes to enable peer name support.

Config [Peer] sections can optionally be [Peer-custom_name] with "show" and "showconf"
displaying the "peer-custom_name" label.  Spaces are ignored.

The data file location is PEERDATAFILE, which defaults to /var/run/wg.peerdata

Comments are appreciated.

Lonnie