Fixed: Crash in 3dsmax plugins (patch provided by Teanwen, thank you so much)

--HG--
branch : develop

code/nel/tools/3d/plugin_max/nel_export/nel_export.cpp

@@ -243,7 +243,7 @@ extern HINSTANCE hInstance;
 static INT_PTR CALLBACK CNelExportDlgProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 {
 	// Set locale to english
-	setlocale (LC_NUMERIC, "English");
+	setlocale (LC_NUMERIC, "C");
 
 	BOOL ret = TRUE;
 	switch (msg)

code/nel/tools/3d/plugin_max/nel_mesh_lib/export_misc.cpp

@@ -1098,7 +1098,7 @@ static std::string OldDecimalSeparatorLocale;
 static void setDecimalSeparatorAsPoint()
 {				
 	OldDecimalSeparatorLocale = ::setlocale(LC_NUMERIC, NULL);
-	::setlocale(LC_NUMERIC, "English");	
+	::setlocale(LC_NUMERIC, "C");
 }
 
 static void restoreDecimalSeparator()

code/nel/tools/3d/plugin_max/nel_patch_paint/paint.cpp

@@ -3522,7 +3522,7 @@ void EPM_PaintCMode::DoPaint ()
 	static float best = 10000.f;
 
 	// Set local to english
-	setlocale (LC_NUMERIC, "English");
+	setlocale (LC_NUMERIC, "C");
 
 	if (pobj->hOpsPanel)
 	{