feat: view, create, edit, delete account number preferences (#381)

- Add account-number-preferences
- Add create-account-number-preference
- Add edit-account-number-preference
- Add view-account-number-preference

Fixes: #382

src/app/system/account-number-preferences/account-number-preferences.resolver.ts

@@ -0,0 +1,30 @@
+/** Angular Imports */
+import { Injectable } from '@angular/core';
+import { Resolve } from '@angular/router';
+
+/** rxjs Imports */
+import { Observable } from 'rxjs';
+
+/** Custom Services */
+import { SystemService } from '../system.service';
+
+/**
+ * Account Number Preferences data resolver.
+ */
+@Injectable()
+export class AccountNumberPreferencesResolver implements Resolve<Object> {
+
+  /**
+   * @param {SystemService} systemService System service.
+   */
+  constructor(private systemService: SystemService) {}
+
+  /**
+   * Returns the Account Number Preferences data.
+   * @returns {Observable<any>}
+   */
+  resolve(): Observable<any> {
+    return this.systemService.getAccountNumberPreferences();
+  }
+
+}