Add effort command interface to hardware interface (backport #1411)#1528

mergify[bot] wants to merge 2 commits intohumbleUniversalRobots/Universal_Robots_ROS2_Driver:humblefrom

mergify/bp/humble/pr-1411UniversalRobots/Universal_Robots_ROS2_Driver:mergify/bp/humble/pr-1411Copy head branch name to clipboard