add template

src/app/demo/domain/customer.ts

@@ -0,0 +1,20 @@
+export interface Country {
+    name?: string;
+    code?: string;
+}
+
+export interface Representative {
+    name?: string;
+    image?: string;
+}
+
+export interface Customer {
+    id?: number;
+    name?: string;
+    country?: Country;
+    company?: string;
+    date?: string;
+    status?: string;
+    activity?: number;
+    representative?: Representative;
+}