UETOOL-213 - Minimize Slate FString -> FText conversion (remove SLATE_TEXT_ATTRIBUTE)
This fixes any editor/engine specific code that was passing text to Slate as FString rather than FText.
[CL 2399803 by Jamie Dale in Main branch]
The display name, filter string, and tooltips for the property editor (and associated detail customizations) are now stored as FText rather than FString. This allows us to remove SLATE_TEXT_ARGUMENT from the detail customization widgets.
[CL 2372595 by Jamie Dale in Main branch]
312511 COLLISION: When duplicating a Static mesh with a Custom collision Preset, duplicate will lose custom settings
332062 LIVE: EDITOR: Custom Collision gets reset to BlockAll when making copies of static meshes
[CL 2053877 by Lina Halper in Main branch]