four wheels and a base

not a cart yet, still learning blender. Here's my first commit.
full base an axle

no chasis sculpting, canopy or seats yet.
added start of cart obj

exported cart work in progress to test obj file and my abilities to use
git. Please check file for suitability for project and remark on any
changes in settings or procedure needed.
Merge pull request #1 from aaronscientiae/master

Testing a pull request across forks