Add support for virtual vouchers

[goflishMC]

Add a new file: virtualvouchers.yml

This new file will log players vouchers by their UUID/name

All messages need to be added to the language.yml

New Commands

#This will check the voucher file and run the list of commands for this voucher and also check the permissions listed for this voucher
#Just FYI The permissions section in the voucher file supports using a permission like "-permission.node"
#If the permission is negated then IF the player has the permission already, then the voucher will not execute and it will not remove it from the players vouchers list
#The permission section supports multiple permission checks
OP/Console Command: /pmcu items voucher virtual  

# This will show the list of the players vouchers in chat
Player Command: /pmcu vouchers list

# This will redeem the voucher for the player if the permission condtions of the voucher  are met
Player Command: /pmcu vouchers redeem ID

# A player can initiate a trade that checks their virtual voucher list
# Send message to other player letting them know a voucher trade request as been initiated
# Send message to the player that initiated the trade, "You sent a trade request to "
# Set timeout for the trade request in seconds to 30 seconds
#After the trade timeout ends, notify both parties that the trade request timed out.
Player Command: /pmcu vouchers trade ID  [$amount]  

# This allows a player to accept a trade
# If the player accepts, notify both players, "You accepted the trade request!" and "Trade request was successful.  accepted your trade request."
Player Command: /pmcu vouchers accept

# List to show in chat when using /pmcu vouchers list
# Formatting for this list should be added to the language file
ID Voucher1 
ID Voucher2