Also fix asset references persisting when applying a property access binding
#jira UE-116509 - Unable to create empty Blend Space Graphs in the Anim Graph
#rb Jurre.deBaare
#ROBOMERGE-SOURCE: CL 16657336 in //UE5/Main/...
#ROBOMERGE-BOT: STARSHIP (Main -> Release-Engine-Test) (v833-16641396)
[CL 16657350 by thomas sarkanen in ue5-release-engine-test branch]
+ UMirrorDataTable stores the bones / notifies / curves to mirror
* Generates table based on FMirrorFindReplaceExpression in project settings
* Can be used in any Animation Blueprint with a compatible skeleton
* Support for self mirroring
* Shared mirror axis
+ Project Settings for Mirroring Find & Replace Strings
+ FMirrorFindReplaceExpression
* Find the mirrored name based on a prefix, suffix, or regular expression match
+ FAnimNode_Mirror
* Inertialization support for blending between mirroring / unmirrored states over a configurable duration
* Support for different MirrorDataTables (to support partial / full body mirroring)
+ Deprecated old mirroring system (FBoneMirrorExport) in SkeletalMesh
#rb Thomas.Sarkanen
[CL 15580895 by timothy daoust in ue5-main branch]