Add suport for Friends plugin

Can you add support for the Friends plugin? That way your friends can also use your transport, it would also be cool if each player could enable/disable this feature

There are plenty of plugins with that name. Which one is it?)

You can check the API in MrBlue's Friends plugin (UMod - https://umod.org/plugins/friends), most other plugins replicate this API so it will be compatible with almost all others as well