rtl-console: unified AROS and MorphOS units except video (for now). but upgraded MorphOS' video unit to AROS level

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@28554 3ad0048d-3df7-0310-abae-a5850022a9f2
rtl-console: don't forget to open libraries on MorphOS

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@28555 3ad0048d-3df7-0310-abae-a5850022a9f2