refactor: use deploy account transaction extension trait

[ArniStarkware]

Pull Request type

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no API changes)
• Build-related changes
• Documentation content changes
• Other (please describe):

What is the current behavior?

There is code duplication between SNAPI InternalDeployAccountTransaction and blockifier DeployAccountTransaction.
The struct DeployAccountTransaction has additional functionality.

What is the new behavior?

• The blockifier struct DeployAccountTransaction is replaced with a type by the same name, which points to the SNAPI struct.
• The implementation is layered under an extension trait.

Does this introduce a breaking change?

• Yes
• No

Other information

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This change is 

[ArniStarkware]

• refactor: use deploy account transaction extension trait #40 👈
• main

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[ArniStarkware]

Collides with #38. To be determined which one is preferable.

[ArniStarkware]

Replaced with #38.