scripts/resulttool: Enable manual result store and regression
To enable store for testresults.json file from manualexecution,
add layers metadata to configuration and add "manual" map to
resultutils.store_map.
To enable regression for manual, add "manual" map to
resultutils.regression_map. Also added compulsory configurations
('MACHINE', 'IMAGE_BASENAME') to manualexecution.
Signed-off-by: Yeoh Ee Peng <ee.peng.yeoh@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>