Added 3 projects

1. A ciphering program I wrote in C++.  It opens a text file, and
adjusts all the letters to a user specified amount.  So the only way to
decipher the text is to use the same program with the right cipher
value.
2. A 2D pong game I created a long time ago. It uses C++ and SDL.
3. Some really, really old html web pages I created.