feat(accounting): add periodic accruals component (#274)

Add periodic accruals component to execute periodic accrual accounting
till a specified date.

src/app/accounting/accounting.service.ts

@@ -165,4 +165,8 @@ export class AccountingService {
     return this.http.put(`/accountingrules/${accoutingRuleId}`, accountingRule);
   }
 
+  executePeriodicAccruals(periodicAccruals: any) {
+    return this.http.post('/runaccruals', periodicAccruals);
+  }
+
 }