dev: do all call restriction checks (only owner etc.) in contracts

[ClementWalter]

In a lot of places, we currently do in the contract

@external
func foo{
    syscall_ptr: felt*, pedersen_ptr: HashBuiltin*, range_check_ptr
}(bar: felt) {
    return Library.foo(bar);
}

and in the associated library

func foo{
    syscall_ptr: felt*, pedersen_ptr: HashBuiltin*, range_check_ptr
}(bar: felt) {
    Ownable.assert_only_owner();
    // ...
}

The check Ownable.assert_only_owner(); shouldn't be in the library because it belongs to a contract logic (who is the caller) and not a library logic (what is the function actually doing).

This issue is consequently about moving all these checks (not only only_owner but similar semantic) at the contract level

[emilamaj]

Do you mind assigning it to me ?

[stevencartavia]

Hi, can I try this one?