Car Phone Holder (portrait version Sony Xperia + improvements)

Inspired by https://www.thingiverse.com/thing:2764753 I made the following changes :
-Phone part :
* Fully parametrized version for easy adaptation using FreeCad : just look for the correct sketch (I named it "YouAreLookingForThisSketch") and change width and height of the smaller rectangle to fit your mobile phone, everything else should follow)
* This version is for a "portrait" phone, but you can easily change it
* Adaptation made for a Sony Xperia XZ1 Compact with bumper, also fits