CR-10S Pro Customizable Glass Bed Clip Extensions

**Update: Now customizable as well!** Attached STL is for a 310x310x3mm glass sheet. For different glass dimensions, try out the customizable model.

Parameters include:
* Clip Width - in case you want the clips themselves to be wider. Can't go too much narrower due to the width of the metal clips.
* Glass Thickness - In case you want to use 4mm glass or similar rather than 3mm.
* Glass Y Dimension - Measure the actual length of your glass plate from front to back and enter it here. This wi