listUntilEnd

I often find myself needing this function:

```
listUntilEnd :: (Binary a) => Get [a]
listUntilEnd = do
done <- isEmpty
if done then return [] else do
next <- get
rest <- listUntilEnd
return (next:rest)
```

Start from the proposed listUntilEnd entry point and inspect the repository's existing Get combinators and test layout. Done would mean the requested operation is integrated consistently with the library and its behavior is covered by tests.

Written by the indexing model from the issue text.