Implemented amb584 - CGlobalEntityList support in SDKTools

Also added FindEntityByClassname native to start this off

--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%401246

plugins/include/sdktools.inc

@@ -36,6 +36,7 @@ enum SDKCallType
 	SDKCall_Entity,		/**< CBaseEntity call */
 	SDKCall_Player,		/**< CBasePlayer call */
 	SDKCall_GameRules,	/**< CGameRules call */
+	SDKCall_EntityList,	/**< CGlobalEntityList call */ 
 };
 
 enum SDKLibrary

plugins/include/sdktools_functions.inc

@@ -104,6 +104,17 @@ native ForcePlayerSuicide(client);
  */
 native SlapPlayer(client, health=5, bool:sound=true);
 
+/**
+ * Searches for an entity by classname.
+ *
+ * @param startEnt		The entity index to begin searching from.
+ *						Use -1 to start from the first entity.
+ * @param classname		Classname of the entity to find.
+ * @return				Entity index >= 0 if found, -1 otherwise.
+ * @error				Lack of mod support.
+ */
+native FindEntityByClassname(startEnt, const String:classname[]);
+
 /**
  * Returns the client's eye angles.
  *