introduce a way to create a python controller for ros2_navigation

CMakeLists.txt

air_navigation_plugins.xml

cmake/modules/FindPythonLibrary.cmake

cmake/modules/FindSIP.cmake

cmake/modules/FindSIP.py

cmake/modules/SIPMacros.cmake

include/air_navigation/py_interface.h

include/air_navigation/python_controller.h

include/air_navigation/python_interpreter.h

package.xml

python/CMakeLists.txt

python/air_navigation/MappedType.sip

python/air_navigation/__init__.py

python/air_navigation/mod.sip

python/air_navigation/py_interface.sip

src/python_controller.cpp

src/python_interpreter.cpp