refs #386, further improvements on interpolation

* extended unit tests for interpolator / parts testing
* allow to skip sorting when splitting by time
* update ot aircraft to FSX in own member function
* Skip time sync parts (FSX) when disabled

src/blackmisc/sequence.h

@@ -60,7 +60,7 @@ namespace BlackMisc
         CSequence(std::initializer_list<T> il) : m_pimpl(new Pimpl<QList<T>>(QList<T>(il))) {}
 
         /*!
-         * \brief By QList of type <T>.
+         * \brief By QList of type T.
          */
         CSequence(const QList<T> &list) : m_pimpl(new Pimpl<QList<T>>(QList<T>(list))) {}