#ttp 339216 - Feature Request: Content Browser: Create Blueprint catagory for new assets
#branch UE4
#proj Developer.AssetTools, Editor.Blutility, Editor.ContentBrowser, Editor.GameplayAbilitiesEditor, Editor.UnrealEd
#add Reassigned asset categories, putting all Blueprint type assets under a new Blueprint category.
#add Added new submenu in FNewAssetContextMenu::MakeContextMenu().
#add Added new filter map entry in SFilterList::MakeAddFilterMenu().
#reviewedby Chris.Wood
[CL 2117647 by Richard TalbotWatkin in Main branch]
* Porting a large swath of the code from SlateComponentWrapper into UMG.
* Creating a derived UBlueprint for AUserWidget. (The base class for a UMG widget).
[CL 2050095 by Nick Darnell in Main branch]
