Reorganize custom widgets into a new 'widgets' package.

1. moving existing widget modules under src/widgets/


svn: r10694

src/GrampsCfg.py

@@ -52,7 +52,7 @@ from BasicUtils import name_displayer as _nd
 import Utils
 from gen.lib import Name
 import ManagedWindow
-from GrampsWidgets import MarkupLabel, BasicLabel
+from widgets import MarkupLabel, BasicLabel
 from QuestionDialog import ErrorDialog, QuestionDialog2
 from Errors import NameDisplayError