Unclutter graphics package scope.
Moved some import statements from "graphics" package to "viewer" module.
It also avoid systematic import of everything in graphics when we only need one submodule.

     1

<?xml version='1.0' encoding='utf-8'?>

     2

<BeremizRoot URI_location="LOCAL://">

     3

  <TargetType/>

     4

</BeremizRoot>