add support for prefix and regex lookup

[hachi029]

Add support for prefix and regex lookup.

Key changes include:

• Added support for wildcard prefix matching using patterns like www.example.* or www.example.
• Added support for regex matching using patterns starting with ~ such as ~^[a-z]+\.api\.example\.com$
• Added support for removing entries via the remove method
• Added support for retrieving multiple matches via the multi_lookup method
• Improved matching logic to handle all pattern types with proper priority ordering

The implementation maintains backward compatibility while extending the hostname matching capabilities to support more complex use cases including:

• Exact match: example.com
• Wildcard suffix match: *.example.com or .example.com
• Wildcard prefix match: www.example.* or www.example.
• Regex match: ~^[a-z]+.example.com$
• Longest match wins for wildcard patterns
• Support for removing entries
• Support for retrieving multiple matches