Calendar transferring works partially

**Describe the bug**
Hi!
Based on the description in readme.md I had a feeling that I can use the tool to transfer calendars. But looks like it works partially and does not migrate calendarrules records which are returned by default when we retrieve calendar records. There is no way to export calendarrule records separately (MS limitations), so the only way it's to use calendars.
In extracted JSON data I can see the rules, but they were not imported at the target env.

**Expected behavior**
I would expect to handle related rules as well, otherwise, I believe not much sense in calendar objects transferring without rules.
Could you please confirm that rules transferring is not supported and only calendar object is migrated?

Thank you.

Start with readme.md’s calendar-transfer description and compare the extracted JSON, where calendarrules are present, with the target import result. Trace the calendar import entry point and add coverage for related rules; done means calendar transfers preserve the rules shown in the export.

Written by the indexing model from the issue text.