Add virtual scrolling card component

Add OpenAPI client(s)

src/app/openapi/variables.ts

@@ -0,0 +1,9 @@
+import { InjectionToken } from '@angular/core';
+
+export const BASE_PATH = new InjectionToken<string>('basePath');
+export const COLLECTION_FORMATS = {
+    'csv': ',',
+    'tsv': '   ',
+    'ssv': ' ',
+    'pipes': '|'
+}