Introduce axeman templates
Introduces axeman parent templates, used to differentiate axemen from swordsmen
(which they had been "under the hood" up until now), and update entity templates
and maps where applicable.
Artwork (actors, icons) is not touched here - see D2688 for that.
Patch by: Nescio
Reviewed By: s0600204
Differential Revision: https://code.wildfiregames.com/D1355