Added the final missing Voids or Reprints report aslo.

Ready for beta 1.
Removed voucher.is_void in favour voucher_type == void

bookie/src/app/voids-reprints-report/voids-reprints-report-datasource.ts

@@ -0,0 +1,18 @@
+import { DataSource } from '@angular/cdk/collections';
+import { Observable, of as observableOf } from 'rxjs';
+import { VoidsReprintsReportItem } from './voids-reprints-report';
+
+
+export class VoidsReprintsReportDataSource extends DataSource<VoidsReprintsReportItem> {
+
+  constructor(public data: VoidsReprintsReportItem[]) {
+    super();
+  }
+
+  connect(): Observable<VoidsReprintsReportItem[]> {
+    return observableOf(this.data);
+  }
+
+  disconnect() {
+  }
+}