Using AtomicTransactionComposer.AddMethodCall w/ UseAccess set and []ForeignAssets w/ 0 isn't rejected

### Your environment

* go-algorand-sdk: 2.11.1

### Steps to reproduce

1. Construct a transaction.AddMethodCallParams{ ..} instance w/ AppID, method args, etc.
2. Set UseAccess: true
3. Add 0 as member of ForeignAssets slice.
4. Call AddMethodCall(params) on AtomicTransactionComposer instance.

### Expected behaviour

A foreign asset reference to 0 isn't valid and should return an error from AddMethodCall

### Actual behaviour

The access list composition code adds an empty reference for the asset 0 reference, creating what is technically 'valid', but different, an empty ResourceRef is really treated at runtime by the AVM as an empty box reference. Callers should have to pass an empty box reference to do this, not a 0 asset reference.