adds post drawings in solidworks

Adds drawings for the post as solidworks files. Still looking for a way
to do proper drawings using open source tools.
updatesPostDrawing

updates post drawing
moves drawings

adds drawing folders and moves drawings to them
adds svg drawing, updates pdf drawing, and removes dxf and sw drawings

 Changes to be committed:
	deleted:    drawingsDXF/post.dxf
	modified:   drawingsPDF/post.pdf
	new file:   drawingsSVG/post.svg
	deleted:    drawingsSW/post.slddrw
Merge pull request #7 from burdickjp/addPostDrawing

Adds post drawing