[general] add keychip verify on poweron request

This merge request will add a check on user's keychip id on game startup.
If user's keychip is not existed in the database then they will recieve an allnet auth bad on network check.
This will prevent unwanted connections on some small group's private server.
Currently add keychip to database can only be done by directly modify the table itself.
I'm working on aquaviewer now but this might be delayed.
Do you think this feature should be added? If it should, should it be merged now?
@domeori