Added top-level directories.  'code' directory for code, 'design' directory for design documents.  Empty directories contain a .gitignore to force git to recognize them.  helloworld pong code added to code directory.
Added .gitattributes that should get line endings working properly across platforms.  C/C++ source files and VisualStudio .sln files are explicity declared as text.
Merge pull request #2 from fenaren/helloworld

Helloworld