This class registers postinst/postrm hooks to compile the GSetting schemas, and
adds the relevant dependencies. If possible the postinst happens on the host to
avoid running it on the target.
[ YOCTO #2798 ]
(From OE-Core rev: ba9d5626174c1144b83963755ef310328306c3a3)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
