added CS7496_project1
added elevator and freethrow apps
delete some apps
added Galileo app
modified Galileo
added snowcube app
added tinkertoy app
added more comments
modified cmake files
edited apps
added rigidBodies
fixed bugs in CD
modified rendering files
added skel and urdf files
deleted Galileo
deleted snowcube and tinkertoy
edited Cmake
more comments added to rigidbodies
minor changes
affine transforamtion