Temporarily add back generated nmap.rc.

This is needed from the Visual C++ GUI build, not only from make, and
the GUI doesn't have a way to generate this file.

It may be possible to have a Visual Basic script to the automatic
updating of the version number, according to this article.
http://support.microsoft.com/kb/237870

mswin32/nmap.rc

@@ -0,0 +1,54 @@
+// Automatically generated from nmap.rc.in.
+     //Microsoft Developer Studio generated resource script.
+//
+// edited
+//
+
+#include <windows.h>
+#include "resource.h"
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Version
+//
+
+VS_VERSION_INFO VERSIONINFO
+FILEVERSION 6,0,2,0
+ FILEFLAGSMASK 0x3fL
+#ifdef _DEBUG
+ FILEFLAGS 0x21L
+#else
+ FILEFLAGS 0x20L
+#endif
+ FILEOS 0x40004L
+ FILETYPE 0x1L
+ FILESUBTYPE 0x0L
+BEGIN
+    BLOCK "StringFileInfo"
+    BEGIN
+        BLOCK "040904b0"
+        BEGIN
+            VALUE "CompanyName", "Insecure.Org\0"
+            VALUE "FileDescription", "Nmap\0"
+            VALUE "FileVersion", "6.02\0"
+            VALUE "InternalName", "Nmap\0"
+            VALUE "LegalCopyright", "Copyright (c) Insecure.Com LLC (fyodor@insecure.org)\0"
+            VALUE "LegalTrademarks", "NMAP\0"
+            VALUE "OriginalFilename", "nmap.exe\0"
+            VALUE "ProductName", "Nmap\0"
+        END
+    END
+    BLOCK "VarFileInfo"
+    BEGIN
+        VALUE "Translation", 0x409, 1200
+    END
+END
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Icon
+//
+
+// Icon with lowest ID value placed first to ensure application icon
+// remains consistent on all systems.
+IDI_NMAP                ICON    DISCARDABLE     "icon1.ico"