Fix: import script to fit the new structure of voucher table (is_printed field removed, voucher_type != KOT is now assumed to be printed)

Fix: Take-away bill type is now removed
Fix: Table overview now shows the right amounts
Voucher Save and Update should now work
Discounts now working (permissions are not checked)

bookie/src/app/sales/bills/bill.ts

@@ -46,7 +46,6 @@ export class Bill {
   settlements: any[];
   void: boolean;
   voidReason: string;
-  printed: boolean;
   voucherType: string;
   serial: number;
   kots: Kot[];
@@ -59,7 +58,7 @@ export class Bill {
 
 export enum PrintType {
   Kot = 'KOT',
-  Bill = 'BILL',
+  Bill = 'REGULAR_BILL',
   NoCharge = 'NO_CHARGE',
   Staff = 'STAFF'
 }