Loading jquery-validation additional-methods.js for regex pattern validation is excessive

Problem/Motivation

The additional-methods.js provided by the jquery-validation library is 42kB in size and is a hodge podge of validation methods that are unrelated to validation via a regex pattern. However the Pattern Validator Plugin provided by clientside_validation_jquery loads the entire js file to make use of the 1 method in it. This could be more efficient.

Steps to reproduce

Tested with webform:

1. Configure a form field to be validated by pattern or via a custom plugin that relies on pattern
2. Check the form on a page
3. Check network activity in dev tools and see that additional-methods.js is loaded

Proposed resolution

Move the pattern validation method out into a separate file that is provided by the Drupal module instead of loading the entire additional-methods.js file provided by the 3rd party library.