Initial folder configuration with all available documents.

This should help coordinate all our efforts around the same workspace.

Signed-off-by: Philippe Côté <pcote@MacBookProPhil.local>
Configured github to ignore .DS_Store files on Mac OS X.

Signed-off-by: Philippe Côté <pcote@MacBookProPhil.local>
Added READ ME file on how Data folder should be used.

Signed-off-by: Philippe Côté <pcote@MacBookProPhil.local>