tests: add token ordering test of indexed selects
tests: add token ordering test of indexed selects

Add new test validating that rows returned from both non-indexed selects
and indexed selects return rows sorted in token order (making sure
that both positive and negative tokens are present to test if signed
comparison order is maintained).

scylladb/scylla,scylladb/scylla,scylladb/scylla,scylladb/scylla