Cursor->next and cursor->prev should both check against the provided bounds to determine if they can early exit. Ideally this can be implemented with a single or two functions. Each taking a the CBT.

Scope:

• Implement this logic for row-store and column-store.
• Add two statistics, one for early exit on next and one for prev.
• Ensure it works with collators.
• Write python tests to validate.
• Turn on CppSuite stress test.