d26501c0f3
- `anchor` determines the point of wrench application, in the frame of body2. - `tfratio` scales applied torques relative to applied forces. - Add visualisation of both anchor points to both weld and connect constraints. - Add a test model showing how the new weld parameters behave. PiperOrigin-RevId: 470021901 Change-Id: I3faba0e5dcab2e29ee81096f5ff71ff66d99758c