Added sphinx documentation (to be tested with readthedocs)

docs/build/html/_sources/mbtrack2.tracking.rst.txt

docs/build/html/_sources/mbtrack2.utilities.rst.txt

...uild/html/_static/_sphinx_javascript_frameworks_compat.js

docs/build/html/_static/basic.css

docs/build/html/_static/doctools.js

docs/build/html/_static/documentation_options.js

docs/build/html/_static/file.png

docs/build/html/_static/jquery-3.6.0.js

docs/build/html/_static/jquery.js

docs/build/html/_static/language_data.js

docs/build/html/_static/minus.png

docs/build/html/_static/nature.css

docs/build/html/_static/plus.png

docs/build/html/_static/pygments.css

docs/build/html/_static/searchtools.js

docs/build/html/_static/underscore-1.13.1.js

docs/build/html/_static/underscore.js

docs/build/html/genindex.html

docs/build/html/index.html

docs/build/html/mbtrack2.html