Package contains BluePrint classes called 'asdf' and 'blutil'

[moppius]

There are two BluePrint classes defined in this plugin which have unclear or invalid names which pollute the global class list.

• asdf - looks like it can be removed as it's not referenced anywhere?
• blutil - should be renamed for consistency & clarity (e.g. BP_ImposterBaker_Blutility or something appropriately descriptive)