First Test of Enum Branch

Moved card class to own .java file. Will begin playing with enum and branches from there.
Second Attempt at Playing With Branches

Created new .java file for Cards class, within which to play with enum and Git branches.
Refactored program to make use of enum types.
Added new files for distinct class/enums.
Brought variable types within convention.
Minor text message edits.
Updated minor bracketing best practices.