DSL Usage

Example:

//you can use only 'name' param, others is optional
command(name="testDSL",
    permission = "test",
    tabComplete = listOf("subcmd1", "subcmd2")
    ) {

    //You can add subcommand!
    //args same with simpleCommand
    subCommand("sub1", permission = "test") {
       executor { 
           sender.sendMessage("sub")
           val arg = argument(1) //args same with simpleCommand
           
       }
        
        //sub command in sub command!
        subCommand("sub1sub") {
            
        }
    }

    //if command hasnt args or first arg isnt subcommand
    executor {
        sender.sendMessage("usage")
    }
}