Product Sale Module done (Sales Detail) -- need to rename the permission

bookie/src/app/product-sale-report/product-sale-report.ts

@@ -0,0 +1,14 @@
+export class ProductSaleReportItem {
+  name: string;
+  kot: number;
+  regularBill: number;
+  noCharge: number;
+  staf: number;
+  void: number;
+}
+
+export class ProductSaleReport {
+  startDate: string;
+  finishDate: string;
+  amounts?: ProductSaleReportItem[];
+}