Add utils.bisect.test to handle test case bisections
Add utils.bisect.test to handle test case bisections

Add the utils.bisect.test module with all the code to create, run and
update test case bisections based on regression documents.

This implementation only supports running bisections as Jenkins jobs.

Signed-off-by: Guillaume Tucker <e7e20b7c30f19d4ca6b81319ef81bf200369d137@collabora.com>

kernelci/kernelci-backend,kernelci/kernelci-backend