[pr2eus_moveit] angle-vector-motion plan runs normal angle-vector in kinematics simulator

[knorth55]

this PR avoid error when we run angle-vector-motion-plan in kinematics simulator.
the way is just run angle-vector or angle-vector-sequence when kinematics simulator is on.
this PR is useful when we share the same code for 1) real robot + moveit and 2) kinematics simulator.
now we need to switch angle-vector-motion-plan and angle-vector for testing same code in 1) and 2).

[k-okada]

@knorth55 could you provide simplest example code which reproduce the problem?

[knorth55]

(load "package://pr2eus/pr2-interface.l")
(load "package://pr2eus_moveit/euslisp/pr2eus-moveit.l")

(pr2-init)
(send *ri* :angle-vector-motion-plan (send *pr2* :reset-manip-pose))