Agent Voucher & ResDiary to EPOS and NRA Improvements

Allow a function to add a Voucher Number & Guest Name to be imported from ResDiary bookings automatically into the EPOS table and add the details to the order & JOURNAL for accounts reconciliation later, and then transfer those details into an NRA in Rezlynx rather than just the current Room Charge basic wording, which is useless. NRA's need the full table details with the guest name, voucher number & NRA name (i.e. BuyAGift) to ensure staff transfer to the right NRA when there are many voucher suppliers shown in NRA's.