[DOC] add OpenSWATH classes to DefaultParamHandlerDocumenter
[FIX-#618] fix spelling errors across OpenMS header files
[FIX,BUILD] fix pyOpenMS build without contrib

fix pyOpenMS build on certain Linux distributions when no contrib is
present (libsvm is not found due it being in a subfolder of
/usr/include).
[FIX] fixes MSVC compile issues in StatisticFunctions_test