Add a log-level with timeout.
Add a log-level with timeout.

The TimedLevel is enables the setting of a log-level for a duration.
When the duration ends, the log-level is reset to a given default.

Signed-off-by: Thomas Hallgren <5f50a84c1fa3bcff146405017f36aec1a10a9e38@datawire.io>

datawire/telepresence,datawire/telepresence,datawire/telepresence