The library publishes process lifecycle events through a `DiagnosticListener` named
`Geekeey.Process`. Subscribe through `DiagnosticListener.AllListeners` and handle the
`starting`, `started`, and `finished` events. Each event value is a mutable `Hashtable`
that is shared by the lifecycle, so values added by a listener remain available to later
stages.
This also removes the description from the package readme. The desciption of the package is
shown on nuget.org in the list view and if no package readme is defined on the detail view of
a package version. Since we provide a package readme we do not need the description shown
twice.
