RequestPackageInfo is triggered by GUI client to request the available
package information.
PackageInfo event is to pass package information back to GUI.
(Bitbake rev: 9020c2d4476766f63ff7e024bbd99043d06feefc)
Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>