[FEATURE] Introduce shadowColumnsForMovePlaceholders property

$TCA[<table>]['ctrl']['shadowColumnsForMovePlaceholders'] behaves
similar to shadowColumnsForNewPlaceholders but is only used for
move placeholders.

Resolves: #56994
Documentation: #56749
Releases: 6.2
Change-Id: Icdbd35234efae8162cfb2dc15a2838acd22370b1