Add support for tiled logs to ctclient

ctclient does not appear to support crawling tiled logs from https://www.gstatic.com/ct/log_list/v3/all_logs_list.json.

For example:
```
./ctclient get-entries --first 0 --last 0 --log_name "Let's Encrypt Willow2025h1b"
F0310 14:01:50.693967    8341 root.go:131] No log with name like "Let's Encrypt Willow2025h1b" found in loglist "https://www.gstatic.com/ct/log_list/v3/all_logs_list.json"
```