Additional Telemetry events for the partitioned adapter

[cabol]

Additional Telemetry events for the partitioned adapter, adding into the metadata the current cluster nodes. The events are:

• telemetry_prefix ++ [:bootstrap, :started] - Dispatched by the adapter when the bootstrap process is started.
• telemetry_prefix ++ [:bootstrap, :stopped] - Dispatched by the adapter when the bootstrap process is stopped.
• telemetry_prefix ++ [:bootstrap, :exit] - Dispatched by the adapter when the bootstrap has received an exit signal.
• telemetry_prefix ++ [:bootstrap, :joined] - Dispatched by the adapter when the bootstrap has joined the cache to the cluster.