Adding Seat plan component and database tables

software/backend/models/locations/city.model.ts

@@ -0,0 +1,17 @@
+import { Column, HasMany, Model, Table } from "sequelize-typescript";
+import { Location } from "./location.model";
+
+@Table({ timestamps: false })
+export class City extends Model {
+  @Column
+  name: String
+
+  @Column
+  country: String
+
+
+  // Relations
+
+  @HasMany(() => Location)
+  locations: Location[]
+}