feat(daffio): add DaffioRoute type (#2984)

Author: griest024

apps/daffio/src/app/core/router/route.type.ts

@@ -0,0 +1,15 @@
+import { Route } from '@angular/router';
+
+import { DaffDocKind } from '@daffodil/docs-utils';
+import { DaffRouteWithNamedViews } from '@daffodil/router';
+
+/**
+ * A route config that possibly contains different kinds of data used in the application.
+ */
+export interface DaffioRoute extends Route {
+  data?: Route['data']
+  & DaffRouteWithNamedViews['data']
+  & {
+    docKind?: DaffDocKind;
+  };
+}