feat: allow users to bind to all interfaces when a proxy is enabled

- use a plugin trigger to see whether we should bind to all interfaces
- create a generic way of setting properties for a plugin
- migrate proxy-enabled to the new network property "bind-all-interfaces"
- add network:set subcommand

plugins/network/.gitignore

@@ -1,3 +1,6 @@
 /commands
 /subcommands/*
 /network-*
+/install
+/post-create
+/post-delete