Add Schedule model.

src/scheduler/schedule.ts

@@ -0,0 +1,13 @@
+// vim: set tw=80 ts=2 sw=2 sts=2:
+
+export class Schedule {
+  id: number;
+  start_date: Date;
+  stop_date: Date;
+  day: number;
+  frequency: number;
+  label: string;
+  value: number;
+  category: string;
+  account_id: number
+}