Feature Request: account/password

[joshbowyer]

Adding the ability for users to create an account/password (account would be mapped to their nodeid and aliased as whatever account name they choose) would provide the ability to secure messages etc against spoofed nodes. Additionally, the ability to only allow bot access (obviously this would only be enabled if channel mode is false and dm only mode is true) to authenticated users would be important for some use cases. maybe a "create account" function for unauthenticated nodes, and approval requests either appear in the terminal on the running host, and also get sent to whoever is added as an admin node for meshing-around?