Results 2 issues of Way of Wood

This is adding a T-Slot toolbit to the path workbench and provides the Generator for a Keyhole Toolpath as discussed in the following [Forum post](https://forum.freecadweb.org/viewtopic.php?style=5&f=15&t=65416).

WB Path
Feature

Thank you for creating a pull request to contribute to FreeCAD-macros! To integrate your macro please make sure the following steps are complete: - [ ] Please check this box...