Fix Euler rotation matrix angles and composition order

[LuuSir]

Base: Cosys-Lab/Cosys-AirSim:5.2.1 (09d8f992).

euler_to_rotation_matrix(0, 0, pi/2) currently rotates the x axis by 45 degrees. Use full angles in matrix entries and compose rotations as Rz(yaw) @ Ry(pitch) @ Rx(roll) to match euler_to_quaternion. Preserve the existing list return type and apply_rotation_offset(position, pitch, yaw, roll) argument order.

Validation

• Three unittest methods pass on the independent upstream patch: axis quarter turns, quaternion agreement for combined angles, and offset argument order.
• The same suite reports six failed assertions/subtests on the unmodified upstream implementation.
• No simulator required. From the repository root, set PYTHONPATH=PythonClient and run python -m unittest discover -s PythonClient/tests -p test_rotation_utils.py -v.

[Copilot]

Copilot was unable to review this pull request because the user who requested the review has reached their quota limit.