Run tests in current binary directory, not global source directory (#206)
Run tests in current binary directory, not global source directory (#206)

Switch to CMAKE_CURRENT_BINARY_DIR for consistency with CTest

Signed-off-by: Dan Rose <2591e5f46f28d303f9dc027d475a5c60d8dea17a@digilabs.io>
ament/ament_cmake,ament/ament_cmake,ament/ament_cmake