Add a atype and store it in the self.atypes

        :returns: None
        :rtype: None
        :raises: None

def add_atype(self, ):
        """Add a atype and store it in the self.atypes

        :returns: None
        :rtype: None
        :raises: None
        """
        i = self.atype_tablev.currentIndex()
        item = i.internalPointer()
        if item:
            atype = item.internal_data()
            atype.projects.add(self._project)
            self.atypes.append(atype)
            item.set_parent(None)