Added slash command function to show tooltip at cursor

You can now with the command "/VTooltip" toggle on/off if you want ActionBar Tooltips to show at cursor or as default. 

Couldn't make the option in "OptionsInterface" work, so made it duable with a slash Command. 
Later on if there is going to be a config window for the whole UI it could get an button there. Or if Carbine actually fixes their option it can be removed.