enable/disable moving with mouse left-click

[tiger_eye]

Attached is a patch to allow an option to not move when left-clicking on the map. Default is to allow mouse movement.

Summary of behavior when disabled:

Right-click "Move to" works as it did before (in ToME).
Left-clicking on an empty tile never moves.
Left-clicking while in cheat mode does teleport to that spot.
Left-clicking on yourself does spend a turn. (do we want this behavior?)
Left-clicking on an adjacent hostile does attack.
Left-clicking on a non-adjacent hostile does not melee attack or move.
"Left click on target" still works as before.

I also removed the redundant "Smooth fog of war" option.

Cheers!

[darkgod]

Applied