Change path and names of diode packages.

This pull request:
1. Changes path for diodes 3d packages from Dioden_SMD_Wings3d_RevA_06Sep2012 to Diodes_SMD.
2. Removes _Faktor03937_RevA_06Sep2012 suffixes from file names.
3. Adds missing SMC VRML file. 
Corresponding pull request opened for Diodes_SMD.pretty repo: https://github.com/KiCad/Diodes_SMD.pretty/pull/2