Added Basecode to Product

Added Voucher Type During Printing
Added Discount Report
Fixed Void bill table not getting cleared error
Added PAX to table
Removed Itital Setup button in MainForm as it was not doing anything

Tanshu.Accounts.Contracts/Data Contracts/VoucherType.cs

@@ -0,0 +1,16 @@
+using Tanshu.Accounts.Contracts;
+
+namespace Tanshu.Accounts.Entities
+{
+    public enum VoucherType
+    {
+        [Display("Regular Bill", true, 2)]
+        Regular = 1,
+        [Display("No Charge", true, 3)]
+        NoCharge = 2,
+        [Display("Take Away", true, 2)]
+        TakeAway = 3,
+        [Display("Staff Bill", true, 4)]
+        Staff = 4,
+    }
+}