Add support for "Deep Sleep Wake Stubs" to persist small chunks of data during sleep

[nfbot]

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[networkfusion]

Not stale!

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[networkfusion]

In progress!