add function for double-click to select all char

[honhwa]

Thank you for bringing such a great SSMS extension! I have a feature request: Could you add a functionality where double-clicking inside single quotes in the SSMS editor selects the entire content? This usually works, but it fails to select fully when the content contains a hyphen ('-'). Thank you! Please refer to this VS extension as a reference: https://github.com/reduckted/SelectHyphenated