Implement transaction count based shared object congestion control

[halfprice]

Description

This PR adds another mode in PerObjectCongestionControlMode, TotalTxCount, which uses total transaction count that operate on a object to limit the critical path of shared object transaction in a consensus commit.

The logic is the same as PerObjectCongestionControlMode::TotalGasBudget, except that now a transaction cost is 1 instead of the gas budget.

Test plan

Unit test. Integration test.

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Release notes

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• [ ] Protocol:
• [ ] Nodes (Validators and Full nodes):
• [ ] Indexer:
• [ ] JSON-RPC:
• [ ] GraphQL:
• [ ] CLI:
• [ ] Rust SDK:

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Name	Status	Preview	Comments	Updated (UTC)
sui-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 29, 2024 9:32pm

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