Fleshing out some CardLibrary functions

Adding trueValue function stub to Card
Removing extra statements from DumbPlayer
Adding one way of run scoring to Hand::scoreWithFlop
Adding function to CardSet to draw multiple cards
Filling out bodies of CardLibrary:: Shuffle, Draw, Add, and Size
Moved Deck initialization to CardLibrary.cpp
Bug fixes.

Probably.
I don't understand the shuffledCards initializer, so I'm replacing it
with a simpler one that hopefully does the same thing?
Fixing missing type declarations, incorrect variable names, and missing
semicolons.