resulttool/store.py: Enable add extra test environment data
Enable the option to add extra test environment data to the
configuration of each test result (as optional).
Example of optional test environment data include:
- custom packages included for runtime test
- detail machine specification used as target
- detail host environment used for bitbake
Signed-off-by: Yeoh Ee Peng <ee.peng.yeoh@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
