Can `FairRootManager::RegisterAny` consume `T*` instead of `T*&` as second argument?

[dennisklein]

Followup on one aspect identified in #789.

Disadvantages of T*&:

• If people want to register object that are referenced by a smart pointer, they are currently told to extract the raw pointer and extend its lifetime with a local static variable.
• The calling method will effectively only work once.
• You cannot pass rvalues.

[sawenzel]

I agree that there is room for improvement here and I appreciate the initiative. I remember it simply did not work with just T*. Some limitations come in my understanding from the way you need to pass addresses to the TBranch.