Fix line_to_line_residual def in DQ_Kinematics_py.cpp

[qlin960618]

Request for bug fix in dqrobotics python for DQ_Kinematic reference to line_to_line_residual fucntion

Edit by @mmmarinho for clarity:

Bug & Cause

There is no line_to_line_residual accessible through the Python API. See #48

Fix

The two references to line_to_point_residual in L64, shown below, must be replaced by line_to_line_residual.

python/src/robot_modeling/DQ_Kinematics_py.cpp

Line 64 in 413595e

dqkinematics_py.def_static("line_to_point_residual", &DQ_Kinematics::line_to_point_residual, "Returns the robot line to line residual");

[mmmarinho]

@qlin960618 Thanks.

The fix in the code seems pretty straightforward, but could you better describe the situation in the first comment?

We need these to have a decent description so that we can keep track of the changes we made.