YQL-18303: Introduce To* overloads

commit_hash:99b69544bd45b52e2e6bfcd8cd51e34827a0f08d

(cherry picked from commit 2c78e37)

Author: igormunkin

yql/essentials/udfs/common/datetime2/datetime_udf.cpp

@@ -39,6 +39,11 @@
             "uri": "file://test.test_StartOf_/results.txt"
         }
     ],
+    "test.test[To]": [
+        {
+            "uri": "file://test.test_To_/results.txt"
+        }
+    ],
     "test.test[Update]": [
         {
             "uri": "file://test.test_Update_/results.txt"