Move sample from agl-service-homescreen-2017

    This sample is using libhomescren with homescreen sevice,
    So better move inside of libhomescreen.
    Related Commit:
        https://gerrit.automotivelinux.org/gerrit/#/c/11429/
    [Patch Sets 2]
    Rebased to c0e6b4d9496eacabeffc4115fad7c1a288de60c8

    [Patch Sets 3]
    Delete ivi-application-client-protocol.h and some trailing whitespace.

    [Patch Sets 4]
    Change temlate/README to README.md

    [Patch Sets 5]
    Rebased to 572023336d9573d3d5636d7e61a8dd3ed8878b0d

    [Patch Sets 6]
    Add LICENSE.APL-2.0 and LICENSE.MIT to sample.
    Modify config.xml license to APL 2.0 + MIT.

BUG-AGL: SPEC-988
Change-Id: Id9a1a2401a9a0a42442ce84025213036a4fccd78
Signed-off-by: zheng_wenlong <wenlong_zheng@nexty-ele.com>