Brief: //dnl ch75

- More map editor fixes and map inventory pool performance improvement for big maps.
Details:
- Fix not showing expected messagebox on exit (ALT+x) which also throw exception and goes to improper mapeditor exit.
- Fix second annoying sticky message which shouldn't popup during map loading and performing RemoveProhibitedAttachments.
- Fix CTD when delete all enemies or civilians or all of them in map.
- Fix some std exception when reporting for missing optional xml file.
- Fix memory and map corruption in old mapeditors if loaded old map has item with invalid attachment and we try to attach something else.
- As years ago pInventoryPoolList had migrated from WORLDITEM* array to std::vector<WORLDITEM> it was time to do that with gWorldItems too, all necessary functions which need to be adopted to gWorldItems std::vector type are also changed.
- Resize code for gWorldItems is changed hoping will lead into less corruption problems as now could occur in mapeditor and game when code automatically doing attachment changes.
- Change code for handling map inventory which now should be fast enough to support AIMNAS project which will probably deal with thousands of items per map.


git-svn-id: https://ja2svn.mooo.com/source/ja2/trunk/GameSource/ja2_v1.13/Build@6554 3b4a5df2-a311-0410-b5c6-a8a6f20db521

TileEngine/Explosion Control.cpp

@@ -3893,7 +3893,7 @@ void HandleExplosionQueue( void )
 
 	uiCurrentTime = GetJA2Clock();
 	// WDS 07/25/2008 - Avoid error where gWorldItems and/or gWorldBombs is nil
-	if (gWorldBombs && gWorldItems) {
+	if (gWorldBombs && !gWorldItems.empty()) {//dnl ch75 271013
 	for ( uiIndex = 0; uiIndex < gubElementsOnExplosionQueue; uiIndex++ )
 	{
 		if ( gExplosionQueue[ uiIndex ].fExists && uiCurrentTime >= gExplosionQueue[ uiIndex ].uiTimeStamp )