Update Pentax lens list to match ExifTool version 9.56.

git-svn-id: svn://dev.exiv2.org/svn@3252 b7c8b350-86e7-0310-a4b4-de8f6a8f16a3
Update Canon lens list to match ExifTool version 9.57.

git-svn-id: svn://dev.exiv2.org/svn@3253 b7c8b350-86e7-0310-a4b4-de8f6a8f16a3