C++ GET/POST, Diceapp and python diceapp

C++ GET/POST, plus diceapp. Also added READMEs for all sections with how to install/use the libraries used in the programs.

@bdonald25 
This URL is near the top of the file, which is good.  However, there are now (at least) two files in which we're using the URL stub `http://rsense-dev.cs.uml.edu/api/v1/projects/`.  Maybe this portion of the URL should be defined as a constant in a file both of these .cpp files include?