-added underslung/attached GLs to AI inventory and enabled AI to use them :)

-rewrote the AI sniper code to take advantage of readying weapons.  Added new SNIPER order for soldiers that's assigned when a soldier has a sniper rifle (80% chance) or a scope (40% chance).
-spreadsheet update

git-svn-id: https://ja2svn.mooo.com/source/ja2/trunk/GameSource/ja2_v1.13/Build@216 3b4a5df2-a311-0410-b5c6-a8a6f20db521

Tactical/bullets.cpp

@@ -410,6 +410,7 @@ void AddMissileTrail( BULLET *pBullet, FIXEDPT qCurrX, FIXEDPT qCurrY, FIXEDPT q
 	{
 		strcpy( AniParams.zCachedFile, "TILECACHE\\BULLET_TRACER.STI" );
 		AniParams.uiFlags |= ANITILE_LIGHT;
+		AniParams.sDelay = 0;
 	}
 
 	CreateAnimationTile( &AniParams );