In practice, Application Insights can take up to 3 minutes before something sent to it is available via KQL.
This PR logs a start and stop marker such that the integration tests only search for logs during the integration tests. This reduces the complexity when using the integration tests during the development process.
Note: this migrated the new functionality from #356 into the latest integration test tools.
Enables co-locating multiple tasks in a given work-set.
Tasks are bucketed by the following:
* OS
* job id
* setup container
* VM SKU & image (used in pre-1.0 style tasks)
* pool name (used in 1.0+ style tasks)
* if the task needs rebooting after the task setup script executes.
Additionally, a task will end up in a unique bucket if any of the following are true:
* The task is set to run on more than one VM
* The task is missing the `task.config.colocate` flag (all tasks created prior to this functionality) or the value is False
This updates the libfuzzer template to make use of colocation. Users can specify co-locating all of the tasks *or* co-locating the secondary tasks.
