inc: winapi: #include shlobj from shlwapi, as in old headers

http://www.freebasic.net/forum/viewtopic.php?p=206987#p206987
(cherry picked from commit 25bd82f)

Conflicts:
	changelog.txt

Author: dkl

changelog.txt

@@ -13,7 +13,7 @@ Version 1.02.1
 - 1.02.0 regression: OpenGL binding: glGetString() and some others use ZString Ptr instead of GLubyte Ptr again
 - 1.02.0 regression: Windows API binding: REFIID and some other REF* types were missing; wsprintf/wvsprintf declarations were missing; ole2.bi couldn't be included directly/alone anymore.
 - bindings: Various previously untranslated (or wrongly translated) #defines in SDL2, X11, crt/pthread, Windows API
-- Windows API binding: DirectX headers missed some declarations and some didn't compile, win/commdlg.bi couldn't be #included behind windows.bi without WIN_INCLUDEALL because of missing #includes; re-added the undocumented ENUMWINDOWSPROC type
+- Windows API binding: DirectX headers missed some declarations and some didn't compile, win/commdlg.bi couldn't be #included behind windows.bi without WIN_INCLUDEALL because of missing #includes; re-added the undocumented ENUMWINDOWSPROC type; shlwapi.bi #includes shlobj.bi again (for backwards compatibility).
 - crt/string.bi, crt/mem.bi: Added CONSTs to function declarations
 - #767: Illegal byref result assignments will now cause a proper error message, not just a warning
 - Using the -asm att|intel option for non-x86[_64] targets now triggers an error

inc/win/shlwapi.bi

@@ -7,6 +7,7 @@
 #include once "_mingw_unicode.bi"
 #include once "objbase.bi"
 #include once "shtypes.bi"
+#include once "shlobj.bi"
 
 extern "Windows"