Update with fix of angle conversions and typo fixes

CHANGELOG

MANUAL

Quaternion_Calculator.py

README

matlab_model/Example_model.slx

matlab_model/HFS_Wrapper.cpp

matlab_model/HFS_bus.mat

src/HFS_API.cpp

src/HFS_API.hpp

src/HFS_bus.mat

src/HFS_config.xml

src/detector_features.c

src/fcu_algorithms.c

src/utilities.c

test/HFSTest.cpp

test/example.cpp