Refactor Book Handling

[applehat]

Currently, there is some logic (specifically around book name normalization) that relies on the "book number".

This is perfectly fine for the Protestant Canon, but I imagine would make it error prone if trying to use Anglican, Catholic, or Orthodox sources.

While I as a protestant have my own opinions about biblical canon, I still believe these groups on a whole are Christians and I'd like the library and overall format to better handle deuterocanonical stuff.