Feature: Lazy loading

Lazy loaded everything
TODO: The cash flow module when clicking on sub-links, it reloads the whole page, it needs to be diagnosed and fixed, this problem also exists in the other modules
TODO: Rename folders and modules such as account to accounts to match the url

overlord/src/app/purchase/purchase-routing.module.ts

@@ -7,7 +7,7 @@ import {PurchaseComponent} from './purchase.component';
 
 const purchaseRoutes: Routes = [
   {
-    path: 'Purchase',
+    path: '',
     component: PurchaseComponent,
     canActivate: [AuthGuard],
     data: {
@@ -19,7 +19,7 @@ const purchaseRoutes: Routes = [
     runGuardsAndResolvers: 'always'
   },
   {
-    path: 'Purchase/:id',
+    path: ':id',
     component: PurchaseComponent,
     canActivate: [AuthGuard],
     data: {