Make sal_rtl_uri cppunittest work
- removed call to simpleheader.hxx
- added call in Module_sal.mk for sal_rtl_uri
- created mk for cppunittest for sal_rtl_uri
- removed duplicate include
- change from t_print to printf

Change-Id: I928ade62eb51ba1cb0a74e347411b344d57e97d0
Reviewed-on: https://gerrit.libreoffice.org/590Reviewed-by: Luboš Luňák <l.lunak@suse.cz>
Tested-by: Luboš Luňák <l.lunak@suse.cz>