feat: loans advanced search (fund-mapping) component (#1180)

Fixes: #1179

src/app/organization/organization.service.ts

@@ -686,6 +686,20 @@ export class OrganizationService {
     return this.http.get('/imports', { params: httpParams } );
   }
 
+  /**
+   * @returns {Observable<any>}
+   */
+  getAdvanceSearchTemplate(): Observable<any> {
+    return this.http.get('/search/template');
+  }
+
+  /**
+   * @returns {Observable<any>}
+   */
+  retrieveAdvanceSearchResults(queryObject: any): Observable<any> {
+    return this.http.post('/search/advance', queryObject);
+  }
+
   /**
    * @returns {Observable<any>}
    */