Drop/pick up backpacks using Shift+B, Ctrl+Shift+F:

- added check for DropPackFlag
- added message for soldiers changing backpack status

git-svn-id: https://ja2svn.mooo.com/source/ja2/trunk/GameSource/ja2_v1.13/Build@8260 3b4a5df2-a311-0410-b5c6-a8a6f20db521

Utils/_ItalianText.cpp

@@ -7527,6 +7527,8 @@ STR16 NewInvMessage[] =
 	L"Non può arrampicarsi mentre portano uno zaino",
 	L"All backpacks dropped",	// TODO.Translate
 	L"All owned backpacks picked up",
+	L"%s drops backpack",
+	L"%s picks up backpack",
 };
 
 // WANNE - MP: Multiplayer messages