ENH: Generate EBSD Inverse Pole Figures for a given set of orientations

[imikejackson]

BlueQuartzSoftware/EbsdLib#40

Currently DREAM3D can generate an "IPF Map" (First COLUMN of attached image). DREAM3D can also generate Pole Figures (COLUMN 3 & 4).

Could DREAM3D also generate an "Inverse Pole Figure" (COLUMN 2)? There are 2 types that I have seen in the wild. Something like a discreet version and the contoured with an "MRD" like values.

This should ultimately be done down in EBSDLib but I am putting the feature request here.