Go / Golang Snapshot Options infinite loop

This function can not call itself, it will cause an infinite loop.

```
// Snapshot returns the receiver and allows Snapshot to satisfy the
// ReadTransaction interface.
func (s Snapshot) Options() TransactionOptions {
return s.Options()
}
```
must be
```
// Snapshot returns the receiver and allows Snapshot to satisfy the
// ReadTransaction interface.
func (s Snapshot) Options() TransactionOptions {
return TransactionOptions{s.transaction}
}
```

Start at the Go Snapshot.Options entry point shown in the issue and confirm that it calls itself recursively. Change the return to use the snapshot transaction as specified, then run the relevant Go tests to verify that Snapshot satisfies ReadTransaction without looping.

Written by the indexing model from the issue text.