Added check for number of arguments and nested objects' members

[dribeiro-ShardLabs]

Considering the cairo function:
func foo(a: felt) -> (res: felt): end

The following testing code samples with incorrect number of arguments should fail

contract.call("foo", { a: 1, b: 2 });
contract.call("foo"); 

In functions that take arrays as arguments, the array length is not considered as an argument.

[FabijanC]

Extra arguments (object keys) can appear in nested objects; that should be handled as well.