atk: add native / disable introspection / merge atk.inc->recipe / change license

atk: add native / disable introspection / merge atk.inc->recipe / change license

Native support currently is appended in meta-oe. Native build failed with:

| /usr/share/gir-1.0/GLib-2.0.gir:9:1: error: Unsupported version '1.1'
| /usr/share/gir-1.0/GLib-2.0.gir:9:39: error: Unsupported version '1.1'
| error parsing file Atk-1.0.gir: Failed to parse included gir GLib-2.0
| make[3]: *** [Atk-1.0.typelib] Error 1

build tested in meta-oe / angstrom environment

Signed-off-by: Andreas Müller <schnitzeltony@googlemail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>