Started refactor to allow for I/O
Working on multiple-rolodex methods, which aren't integrated. Runs fine as is.
Added choose rolodex function, runs fine, no new yet
Split sample data module to own file, trying to implement custom headers. Runs.
More heading stuff and fixed book selector to not use zeros as choice
Headers added to add contact
Finished headers in contact add, added already-entered info in subsequent error prompt headers
Changed search to module instead of class, removed instantiation.
Finished all headers (I think)