YARQM: Round dimples on a cylinder

Rounding the oval dimples was tricky but not that hard once I thought of the method of using a sacrificial object to calculate the correct ratio for non-uniform scaling of the cutting tool.

See the .f3d model in Fusion design history for details. 

See: https://www.reddit.com/r/Fusion360/comments/1ms6mk4/how_do_i_create_such_a_golfball_pattern_on_a/