Merge Luise to develop branch

navipy/comparing/__init__.py

navipy/comparing/test.py

navipy/database/__init__.py

navipy/database/test.py

navipy/maths/euler.py

navipy/maths/homogeneous_transformations.py

navipy/maths/test_euler.py

navipy/moving/agent.py

navipy/moving/maths.py

navipy/moving/test_agent.py

navipy/moving/test_maths.py

navipy/processing/mcode.py

navipy/processing/pcode.py

navipy/processing/test.py

navipy/processing/test_OpticFlow.py

navipy/processing/test_mcode.py

navipy/resources/database2.db

navipy/sensors/blendtest_api.py

navipy/sensors/blendtest_renderer.py

navipy/sensors/blendtestyxz.py