[Freeciv-Dev] (PR#8215) win32 client: draw_fog_part doesn't use a mask

["James Canete" <use_less@xxxxxxxxxxx>]

<URL: http://rt.freeciv.org/Ticket/Display.html?id=8215 >

Version 2.

Changes:
-removed fog_sprite, replaced with static HBITMAPs stipple and fogmask.
 This removes the bitmap creation and deletion in draw_fog_part().
-added a check for negative xsrc and ysrc in draw_fog_part().  This lets
me remove the initial blank to WHITENESS bitblt.

I actually wanted to use the new crop_sprite() to combine the old
fog_sprite with sprite_mask, but my first attempt didn't work and I
figured it's faster as is anyway.

-James Canete

win32-fixfog-2.diff
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