Port all tests to the new framework.

[afck]

We have two integration test frameworks at the moment, in tests/net and tests/network. We need to port all the tests to the former, and remove the latter:

• [x] binary_agreement_mitm.rs
• [x] binary_agreement.rs
• [x] broadcast.rs
• [x] honey_badger.rs
• [x] net_dynamic_hb.rs
• [ ] queueing_honey_badger.rs
• [x] subset.rs
• [x] threshold_sign.rs
• ~sync_key_gen.rs (if applicable?)~
• ~dynamic_honey_badger.rs~

[vkomenda]

I'm not sure why there are two binary_agreement.rs tests in the list. I'll work on porting BA tests.

[afck]

Thanks, I removed the duplicate.

[vkomenda]

I recorded in the checklist that the test of Binary Agreement has been updated in #336.

[vkomenda]

test_threshold_sign_first_silent_50_samples fails sometimes which may indicate a bias but it's currently non-reproducible because it instantiates the RNG with thread_rng instead of using the proptest TestRng. This bug must be fixed as part of this bigger issue.

[dforsten]

test_threshold_sign_first_silent_50_samples is now using TestRng, tolerance increased to 33% as suggested by @vkomenda in the discussions in PR #387.

[dforsten]

sync_key_gen.rs does not use the old network simulator, should probably be taken off the list in this issue.

[dforsten]

dynamic_honey_badger.rs is not present in the test folder any more, should probably be taken off the list in this issue as well.

[dforsten]

PR #389, once merged, will close this issue.