Pre-instruction step hook must intercept any mocked function call and inject the correct values into ap from the expanded mock array

[Eikix]

Depends on #102

Tim: Le hook se charge d’intercepter l’execution de la fonction moquée

end goal:
mock_call(name_of_my_func, [42, “shortstring”, ids.myVarName, Uint256 {high: 42, low: 0x0}])