Add required functions and fields to the CachedState and State* traits to take into account compiled_classes

[marco-paulucci]

Check cairo-lang 0.11 source code (especially CachedState, State and StateReader implementations) to include the required methods for:

• getting a compiled_class
• setting a compiled_class
• any other method introduced in this update.

PR: lambdaclass/starknet_in_rust: Pull Request 277
At the moment, we cannot execute CasmContractClass. This will be resolved in another PR. Therefore, the remaining tasks to be resolved in this PR are:

Implement the following methods in the traits:
StateReader

• get_compiled_class(self, compiled_class_hash: int) -> CompiledClass

• get_compiled_class_hash(self, class_hash: int) -> int

• get_class_hash_at(self, contract_address: int) -> int (check if their implementations require changes)

• get_compiled_class_by_class_hash(self, class_hash: int) -> CompiledClass
  State:

• set_compiled_class_hash(self, class_hash: int, compiled_class_hash: int)

• set_class_hash_at(self, contract_address: int, class_hash: int)
  Cairo-lang implementation:
  cairo-lang/state_api.py at master · starkware-libs/cairo-lang
  cairo-lang/state.py at master · starkware-libs/cairo-lang

Delete the get_contract_class and set_contract_class methods from the StateReader and State traits and use the previously implemented methods to replace them. For now, only handle cases where get_compiled_class or get_compiled_class_by_class_hash return a Deprecated(DeprecatedContractClass).

[juanbono]

This is already finished in a couple of PRs