installing test library headers, so they are available for cartographer_ros (#1140)
installing test library headers, so they are available for cartographer_ros (#1140)

Installing the header files of test_helpers, fake- and mock-classes.

This will fix the build failure of cartographer_ros.
damonkohler/cartographer,wohe/cartographer,damonkohler/cartographer,larics/cartographer,larics/cartographer,googlecartographer/cartographer,googlecartographer/cartographer,larics/cartographer,googlecartographer/cartographer,cartographer-project/cartographer,wohe/cartographer,googlecartographer/cartographer,wohe/cartographer,cartographer-project/cartographer,damonkohler/cartographer,cartographer-project/cartographer,wohe/cartographer,cartographer-project/cartographer,larics/cartographer,damonkohler/cartographer