[feature] #1643: Wait for peers to commit genesis in tests

[e-ivkov]

Signed-off-by: Egor Ivkov e.o.ivkov@gmail.com

Description of the Change

Wait for peers to commit genesis in tests.
Also adds a genesis submission delay, which is useful as peers can take some time to connect to each other.

Benefits

Faster tests, less uncertainty points in tests that can cause failures.

Possible Drawbacks

Usage Examples or Tests [optional]

Alternate Designs [optional]

[appetrosyan]

Since #1603 got merged, we should un-ignore the 7_peers_1_fault test.

[codecov]

Codecov Report

Merging #1655 (84d6f9f) into iroha2-dev (068b228) will decrease coverage by 0.15%.
The diff coverage is 74.44%.

❗ Current head 84d6f9f differs from pull request most recent head 26e9d78. Consider uploading reports for the commit 26e9d78 to get more accurate results

@@              Coverage Diff               @@
##           iroha2-dev    #1655      +/-   ##
==============================================
- Coverage       77.36%   77.21%   -0.16%     
==============================================
  Files             128      128              
  Lines           20467    20499      +32     
==============================================
- Hits            15835    15829       -6     
- Misses           4632     4670      +38     

Impacted Files	Coverage Δ
...tests/integration_tests/multiple_blocks_created.rs	0.00% <0.00%> (ø)
client/tests/integration_tests/unstable_network.rs	0.00% <0.00%> (ø)
core/test_network/tests/sumeragi_with_mock.rs	0.23% <0.00%> (-0.01%)	⬇️
core/test_network/src/lib.rs	79.19% <83.33%> (-0.01%)	⬇️
client/tests/integration_tests/add_account.rs	100.00% <100.00%> (ø)
client/tests/integration_tests/add_asset.rs	100.00% <100.00%> (ø)
client/tests/integration_tests/add_domain.rs	100.00% <100.00%> (ø)
...lient/tests/integration_tests/asset_propagation.rs	100.00% <100.00%> (ø)
client/tests/integration_tests/config.rs	100.00% <100.00%> (ø)
client/tests/integration_tests/events.rs	100.00% <100.00%> (+1.07%)	⬆️
... and 23 more

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