Added connectedComponents to Magick++.

git-svn-id: https://www.imagemagick.org/subversion/ImageMagick/trunk@17002 aa41f4f7-0bf4-0310-aa73-e5a19afd5a74
Added entropy to ChannelStatistics in Magick++.

git-svn-id: https://www.imagemagick.org/subversion/ImageMagick/trunk@17004 aa41f4f7-0bf4-0310-aa73-e5a19afd5a74
git-svn-id: https://www.imagemagick.org/subversion/ImageMagick/trunk@17006 aa41f4f7-0bf4-0310-aa73-e5a19afd5a74
git-svn-id: https://www.imagemagick.org/subversion/ImageMagick/trunk@17007 aa41f4f7-0bf4-0310-aa73-e5a19afd5a74
git-svn-id: https://www.imagemagick.org/subversion/ImageMagick/trunk@17010 aa41f4f7-0bf4-0310-aa73-e5a19afd5a74
git-svn-id: https://www.imagemagick.org/subversion/ImageMagick/trunk@17013 aa41f4f7-0bf4-0310-aa73-e5a19afd5a74