feat: consensus store acceptance and finalized states on contracts

[kstroobants]

Fixes #783

What

• Contract contains accepted and finalized state in a states dictionary.
• The encoded state data member of the ContractSnapshot points to the accepted state. This is used in _SnapshotView reads and writes.
• In the transaction accepted state, the contract accepted state is written to the database. The state is taken from the leader_receipt.
• In the transaction finalized state, the contract finalized state is written to the database. The state is taken from the leader_receipt.
• In case a transaction is executed on a contract that does not contain accepted and finalized state, then the old version of the state of an existing contract is updated.
• Updated existing tests.

Why

• To add more value to the user.

Testing done

• Tested the new feature in the studio

Decisions made

The frontend get method show only the accepted contract state. I will create a new issue to show both accepted and finalized contact states.

Checks

• I have tested this code
• I have reviewed my own PR
• I have created an issue for this PR
• I have set a descriptive PR title compliant with conventional commits

Reviewing tips

• Run the studio.
• Check the code changes.

Depends on

This PR contains code from PR #768

User facing release notes

The finalized contact state is tracked.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 33 lines in your changes missing coverage. Please review.

Project coverage is 18.16%. Comparing base (3ff73e5) to head (2336522).

Files with missing lines	Patch %	Lines
...ntend/src/components/Simulator/TransactionItem.vue	0.00%	23 Missing ⚠️
...tend/src/components/Simulator/TransactionsList.vue	0.00%	6 Missing ⚠️
frontend/src/views/Simulator/RunDebugView.vue	0.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #787      +/-   ##
==========================================
- Coverage   18.21%   18.16%   -0.06%     
==========================================
  Files         129      129              
  Lines       10076    10104      +28     
  Branches      302      302              
==========================================
  Hits         1835     1835              
- Misses       8156     8184      +28     
  Partials       85       85              

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[sonarqubecloud]

Quality Gate failed

Failed conditions
38.7% Coverage on New Code (required ≥ 80%)

See analysis details on SonarQube Cloud