[Localization] Add toString to DateWrapper for better debugging

Author: absurdlylongusername

extractor/src/main/java/org/schabi/newpipe/extractor/localization/DateWrapper.java

@@ -69,4 +69,12 @@ public OffsetDateTime offsetDateTime() {
     public boolean isApproximation() {
         return isApproximation;
     }
+
+    @Override
+    public String toString() {
+        return "DateWrapper{"
+                + "offsetDateTime=" + offsetDateTime
+                + ", isApproximation=" + isApproximation
+                + '}';
+    }
 }