removed operator= and copy ctor from classes where they only duplicated the behaviour of the default implementations that C++ generates automatically

src/blackmisc/mathmatrixbase.h

@@ -140,18 +140,6 @@ public:
         return !((*this) == other);
     }
 
-    /*!
-     * \brief Assigment operator =
-     * \param other
-     * \return
-     */
-    CMatrixBase &operator =(const CMatrixBase &other)
-    {
-        if (this == &other) return *this;
-        this->m_matrix = other.m_matrix;
-        return *this;
-    }
-
     /*!
      * \brief Operator *=
      * \param factor