[oe] [PATCH] libpng: Add add 1.2.44, new version and new

[Marc Olzheim]

I've rewritten the previous patch.
The first patch cleans up all of the -native .bb files and the .inc file, replacing it by BBCLASSEXTEND = "native" in the libpng.inc file.
The second patch adds libpng 1.2.44, needed to fix
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-1205
and
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-2249

[PATCH 1/2] libpng: Clean up separate -native recipes, making use of BBCLASSEXTEND.
[PATCH 2/2] [SECURITY] libpng: add 1.2.44 to fix CVE-2010-1205 and CVE-2010-2249.