What do these changes do?
Add --limit flag for ls
Add ordering functionality to --sort flag
Remove last_result from the names of columns for ls
Fix weird double quote error messages (\")
## What do these changes do?
Adds filter flag (--filter) to ls / lsx commands for Tune CLI.
Usage: `tune ls [path] --filter [column] [operator] [value]`
e.g. `tune lsx ~/ray_results/my_project --filter total_trials == 1`