Applies optional filtering to the BP context menu and related UIs.
Primarily this is implemented at the BlueprintActionDatabase/Registrar level as permissions are mostly static. One additional filter has been added to BlueprintActionFilter to handle filtering out items from assets that cannot be referenced from *this* blueprint.
Added type filtering to the variable type tree to prevent creating disallowed variable types.
Also added some auditing console commands: bp.AuditThreadSafeFunctions and bp.AuditFunctionCallsForBlueprint
Corrected FBlueprintEditorUtils::HasFunctionBlueprintThreadSafeMetaData to not track FUNC_BlueprintEvent flags for native functions.
#jira UE-156715
#rb Phillip.Kavan,Jason.Stasik
#preflight 62b572f1970a8db33765bf83
#ROBOMERGE-OWNER: phillip.kavan
#ROBOMERGE-AUTHOR: thomas.sarkanen
#ROBOMERGE-SOURCE: CL 20807495 via CL 20815974 via CL 20816610 via CL 20816624
#ROBOMERGE-BOT: UE5 (Release-Engine-Staging -> Main) (v971-20777995)
[CL 20818683 by phillip kavan in ue5-main branch]
198fbe8f64