Feature request: Add optional flag to be able to tag/label all resources created by the test suite

[philroche]

It would be really neat if we could pass in an optional flag to specify a test string to be used as a tag or label applied to any resource created by the test suite, VM, disks etc.

This will help with tracking usage per test run and also help with cleanup after a test run should there be any resources remaining after the test suite has been completed or if the tests are interrupted.

[philroche]

This is in reference to the imagetest specifically

[a-crate]

All resources created by the test suite should have a description of something like "Instance created by Daisy in workflow "network" on behalf of root" and name like vm1-network-m2jl8 (for an example run of running test network/ubuntu-2004-lts (ID m2jl8) in project whatever), but that doesn't make it very easy to identify programatically since you have to parse out the workflow ID.

We should be able to add a label to make it more easy to identify these, I'll just have to go through all the creation functions and add some labeling.