Update Deimos to new superbuild

* Add Find scripts to CMake to search for phobos and spdlog
* Add integrations tests to cmake by just copying the python code to the build directory
* Update Readme to reflect new SuperDeimos layout and add brief description
5 jobs for 92-add-cmake-scripts-to-find-packages in 8 minutes and 22 seconds (queued for 17 seconds)