Part of future embedding build mechanism, not part of main mozilla build yet. Adding img* modules, r=blythe

config/module2dir.pl

@@ -50,7 +50,14 @@ my %map = (
   'gtkxtbin',           'widget/src/gtkxtbin',
   'helperAppDlg',       'embedding/components/ui/helperAppDlg',
   'htmlparser',         'htmlparser',
+  'imgbmp',             'modules/libpr0n/decoders/bmp',
+  'imggif',             'modules/libpr0n/decoders/gif',
+  'imgicon',            'modules/libpr0n/decoders/icon',
+  'imgjpeg',            'modules/libpr0n/decoders/jpeg',
   'imglib2',            'modules/libpr0n',
+  'imgmng',             'modules/libpr0n/decoders/mng',
+  'imgpng',             'modules/libpr0n/decoders/png',
+  'imgppm',             'modules/libpr0n/decoders/ppm',
   'import',             'mailnews/import',
   'intl',               'intl',
   'jar',                'modules/libjar',