ENH: Update ModelToModelDistance from revision 9c35ae2f336652b2ebf8b139d...

...8e8fb5de30fc8aa to ff4d106d34532ce9917119636f03f1912822e3a4

https://www.github.com/NIRALUser/3DMetricTools/compare/9c35ae2f336652b2ebf8b139d8e8fb5de30fc8aa%E2%80%A6ff4d106d34532ce9917119636f03f1912822e3a4