Fix cylinder depth, chamfer, and function formatting

[jpypi]

• Cylinder depth now consistent across all axes
• Chamfer disabled in non-z axes, since that's nonsensical and wasn't working anyway
• Cleaned up formatting around math symbols for readability

This is what it was doing before (note y axis aligned is 2* the depth of the z axis aligned):

This is what it looks like now:

(x axis orientation was having the same issues as y axis orientation)