Reworked Briefing Room Feature (mission based JA2) (by Jazz)

- Briefing room feature must be enabled in ja2_options.ini (BRIEFING_ROOM)
- Briefing room can be accessed from the laptop. Enter key "SN5631" and then click the exit button

- see: http://www.bears-pit.com/board/ubbthreads.php/topics/327839/Reworked_Feature_Mission_based.html#Post327839
- see: https://ja2svn.dyndns.org/source/ja2/trunk/Documents/1.13%20Modding/Modding%20Examples/Briefing%20Room%20Modding.txt


git-svn-id: https://ja2svn.mooo.com/source/ja2/trunk/GameSource/ja2_v1.13/Build@6573 3b4a5df2-a311-0410-b5c6-a8a6f20db521

Strategic/LuaInitNPCs.cpp

@@ -43,6 +43,7 @@
 
 #include "LOS.h"
 #include "Music Control.h"
+#include "NPC.h"
 
 #ifdef JA2UB
 #include "Ja25 Strategic Ai.h"
@@ -70,6 +71,7 @@ extern "C" {
 
 #include "Encrypted File.h"
 
+#include "BriefingRoom_Data.h"
 extern UINT8	gubWaitingForAllMercsToExitCode;
 
 //-------------------------- UB ------------------------------