Add test utility to update firmware via USB (service-desktop API)
Add timeout to harness port discovery
[EGD-5240] Add common timeout to python test harness
General purpose timeout based on signals library
[EGD-5239] Preserve 1Phone testing
In the long run test harness requires two phones,
but allow for one phone to still pass some test cases
Polish README, so it works 1:1.
Rename method, so it blends better with its calls.
Delete old code, leave phone unlock.
Try not to see this random GCC 10 fix here.