[feature request] Implement Soldier Ants

[liz-cpu]

Enacting the current common rules as though stated in the rules of the Hive game, a Soldier Ant piece should be in use.

The following restrictions are to be observed with this piece:

• An Soldier Ant shall move by shifting an unlimited number of times;
• A shiftis hereby defined as a move in compliance with the movement pattern of a queen bee;
• An Soldier Ant may not move to the square it is already on;
• An Soldier Ant may only move over and into empty squares.