Re-enable the BlockVerifier continuous_blockchain_test

[teor2345]

To handle out of order blocks, we decided to implement a temporary out-of-order block cache in the state service, and disable some of the affected tests.

We need to re-enable these tests, once we have implemented the features they depend on.

TODO

• Re-enable zebra_consensus::chain::tests::continuous_blockchain_test, which depends on contextual verification of post-Sapling blocks (after Refactor Network and NetworkUpgrade enums into structs and a trait #1135)

Context

• we ignored some unit tests in PR Remove the zebra-consensus AddBlock order workarounds #1012
• we ignored some unit tests in commit c042555 - Temporarily ignore failing state tests

[teor2345]

@hdevalence, @yaahc I think the changes in #902 (comment) mainly affect this ticket, rather than PR #1012

#1012 changes the verifiers so they stop trying to handle out of order blocks themselves. This ticket makes the state handle those out of order blocks.

[hdevalence]

I don't think we want a single queue, because the two queues are used in different places and contain disjoint data. Two queues would be a better fit.

[teor2345]

#1101 does not resolve this issue - those tests aren't enabled yet.

[teor2345]

Moved out-of-order transcripts to the state tracking issue #1049.
Moved sync tests to #1188.

The remaining work is out of scope for the first alpha.

[mpguerra]

Seems like this should have been closed by #1101 but wasn't?

Closing manually, feel free to re-open if this is not the case

[mpguerra]

Oops, just checked history, re-opening, sorry for the noise

[teor2345]

This task can't be done in the first alpha, because it depends on the refactor in #1135, which is long-term work.

[teor2345]

It seems like this test got removed or renamed a long while ago.