include path UE4.25 compiler error

Hi,

Great tutorial, btw - I just went through it with UE 4.25 and visual studio 2019.  Compiler throws and error, "can't find include file: IPluginManager.h" in TextAssetEditorStyle.h, line 5. (TextAsset/Source/TextAssetEditor/Private/Styles/TextAssetEditorStyle.h)

Just change that line to:  #include "Interfaces/IPluginManager.h" and you're good to go.

Thanks!