add depend to pr2_controller_msgs

[k-okada]

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Errors     << joint_trajectory_generator:check /home/k-okada/catkin_ws/ws_pr2/logs/joint_trajectory_generator/build.check.000.log             
CMake Warning at /opt/ros/kinetic/share/catkin/cmake/catkinConfig.cmake:76 (find_package):
  Could not find a package configuration file provided by
  "pr2_contollers_msgs" with any of the following names:

    pr2_contollers_msgsConfig.cmake
    pr2_contollers_msgs-config.cmake

  Add the installation prefix of "pr2_contollers_msgs" to CMAKE_PREFIX_PATH
  or set "pr2_contollers_msgs_DIR" to a directory containing one of the above
  files.  If "pr2_contollers_msgs" provides a separate development package or
  SDK, be sure it has been installed.
Call Stack (most recent call first):
  CMakeLists.txt:4 (find_package)


CMake Error at /opt/ros/kinetic/share/catkin/cmake/catkinConfig.cmake:83 (find_package):
  Could not find a package configuration file provided by
  "pr2_contollers_msgs" with any of the following names:

    pr2_contollers_msgsConfig.cmake
    pr2_contollers_msgs-config.cmake

  Add the installation prefix of "pr2_contollers_msgs" to CMAKE_PREFIX_PATH
  or set "pr2_contollers_msgs_DIR" to a directory containing one of the above
  files.  If "pr2_contollers_msgs" provides a separate development package or
  SDK, be sure it has been installed.
Call Stack (most recent call first):
  CMakeLists.txt:4 (find_package)