Do not error on state change for transient objects

[ferranbt]

📝 Summary

Since we fail the CCR when a state change happens, this type of patterns is not possible:

contract Suapp {
  function example() public {
      Other o = new Other();
  }
}

contract Other {
   string jsonrpc;

   constructor(string _jsonrpc) {
       jsonrpc = _jsonrpc;
   }
}

We use this pattern a lot in suave-std and it is helpful as a way to describe transient objects with state.

This PR fixes the issue and only fails if the user tries to make state changes for the Suapp itself.

📚 References

---

• I have seen and agree to CONTRIBUTING.md

[dmarzzz]

LSTM