cap-57 initial draft: State Archival Persistent Entry Eviction

[SirTyson]

See #1480 for discussion.

[anupsdf]

nit: In the verifyProofOfExistence, the indentation is slightly off where expectedHash == r.hash condition is showing as inside the for loop of proof.entries.

[anupsdf]

If an archived entry is restored and the entry currently exists in the Hot Archive, the INITENTRY previously stored in the Hot Archive is overwritten by a RESTORED entry.

How about rephrasing to something like,
If an archived entry is restored and the entry exists in the Hot Archive, then a RESTORED entry is inserted into the Hot Archive bucketlist. This overrides the previously stored INITENTRY in the Hot Archive.

[anupsdf]

nit: 4.3% change a single miss