Verify placement of the robotiq c2 gripper in the robot model

[fsuarez6]

It seems like the placement of the robotiq c2 gripper in the robot model isn't correct:

Notice that the gripper is inside of the robot.

[ctaipuj]

Thank you good catch! Both grippers are now well placed and now both TCPs are the same that the ones we have previously configured on the teach pendant. The URDF file was modified to add the geometry of the grippers' mounting.