Fix telemetry failure for long-running sessions #228
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The telemetry code was creating a singleton base telemetry event the first time that telemetry was being sent. That base event included the date. If a PowerShell session lasted multiple days, the telemetry reporting would eventually start to fail because the date being reported for the event was too old.
We now just create a new telemetry event every time one is requested (this also ensures that it honors changes to the
ApplicationInsightsKey
), and now we only cache a GUID that we use to represent the "session" ID which we consider to be the duration of the current PowerShell session.