[PyKDL] add vector version of JntToCart for fk pos and vel

[MatthijsBurgh]

No description provided.

[Copilot]

Pull Request Overview

This PR adds vector-based versions of the JntToCart method for both forward kinematics position and velocity solvers in PyKDL. The changes enable computing forward kinematics for all segments in a kinematic chain simultaneously, returning results in a list format rather than computing individual segments one at a time.

Key changes:

• Implements vector versions of JntToCart methods using lambda functions with pybind11
• Adds comprehensive test coverage for both position and velocity vector forward kinematics
• Replaces previously commented-out implementations with working solutions

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
python_orocos_kdl/PyKDL/kinfam.cpp	Implements vector versions of JntToCart methods for ChainFkSolverPos and ChainFkSolverVel using lambda wrappers
python_orocos_kdl/tests/kinfamtest.py	Adds test methods testFkPosVect and testFkVelVect to validate the new vector functionality