Calculator: Reorganize Greek translations

Revert AOSP strings & reorganize CM additions .

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: I3ba92bddbc9a68609dc1f46ccd1bfeab733b8c08
Czech: fixed tranlation, fixed string order, added missing
and fixed order again

Change-Id: I953a6f7f514677badabb85e98179e1fd76774d38
Calculator : reorganize and add french translation