RTP (GTL)

Fixed several previous issues with putting costs on rtp commands.

Now players can set a cost and have multiple types of responses for if players cannot afford an rtp/tp or once they have payed for an rtp/tp

eco-charged: "&eYou have been charged: ${cost}"
eco-insufficient-funds: "&eYou need ${cost} to run this command"
# {balance}, {amount}, {cost}, and {player} work for economy messages