Adding map "SteelRibs" by ImNotQ009

git-svn-id: svn://svn.tuxfamily.org/svnroot/tesseract/main@1766 b412e182-2ed4-4078-95c4-27dc59f57fa9
steelrib update

git-svn-id: svn://svn.tuxfamily.org/svnroot/tesseract/main@1767 b412e182-2ed4-4078-95c4-27dc59f57fa9