Update (by anv):

- fix: data read from Data/AdditionalProperties,
- new tag: <bTrapBonus> + updated data for tiles, trap level influenced by terrain,
- new feature/option: COVER_SYSTEM_STATIC_SHADOWS_DECREASE_BRIGHTNESS.

git-svn-id: https://ja2svn.mooo.com/source/ja2/trunk/GameSource/ja2_v1.13/Build@7016 3b4a5df2-a311-0410-b5c6-a8a6f20db521

GameSettings.h

@@ -846,6 +846,8 @@ typedef struct
 	
 	// anv: additional tile properties
 	BOOLEAN fAdditionalTileProperties;
+	// static shadows decrease brightness
+	BOOLEAN fStaticShadowsDecreaseBrightness;
 
 	// HEADROCK HAM B1: Global modifier for mine income (0 is automatically turned to 1 to avoid divide-by-zero.)
 	INT16 usMineIncomePercentage;