[datasets] new, listview (react) (#9197)

* [datasets] new, react listview

* add hidden columns to support filtering by columns not rendered

* throw exception if config is incorrect

* fix database filter

* update endpoints to point to datasets; fix translation strings

* move Link into src/components

* add add new record button to datasets listview

tests/dataset_api_tests.py

@@ -69,8 +69,12 @@ class DatasetApiTests(SupersetTestCase):
         self.assertEqual(response["count"], 1)
         expected_columns = [
             "changed_by",
+            "changed_by_name",
+            "changed_by_url",
             "changed_on",
             "database_name",
+            "explore_url",
+            "id",
             "schema",
             "table_name",
         ]