gadget manager: add FindGadgetByName handler

Change-Id: I8e015fb74b25cb220c9a08cd8536f579549a085b
Signed-off-by: Stanislaw Wadas <s.wadas@samsung.com>
function manager iface: add FindFunctionByName handler

Change-Id: I8477e4139ea6f14b979d22895ccf8557e2d3975c
Signed-off-by: Stanislaw Wadas <s.wadas@samsung.com>
gadget manager: add FindConfigByName handler

Change-Id: I1471297f9aafdf61561ca6392a67e758bd882905
Signed-off-by: Stanislaw Wadas <s.wadas@samsung.com>
udc: Use make_valid_object_path_part() for path generation

Change-Id: Iea13e8ade46374a3263a79fb9d81a0b6775d4e84
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>