feat: Add ConverterOptions

[Sarfraz-droid]

Description of change

Hey @Jackardios , was trying to work with this lib but wanted a feature where I just needed the tailwind classes and parsed css separately. Would love to have an option like ConverterOptions to include such flags within the package.

Usage

const inputCSS = `
.foo {
  padding-left : 25px
}
`

const converter = new TailwindConverter();

converter
  .convertCSS(inputCSS, {
    skipAddingTailwindClasses: true,
  })

Pull-Request Checklist

• [X] Code is up-to-date with the main branch
• [X] npm run lint passes with this change
• [X] npm run test passes with this change
• [ ] This pull request links relevant issues as Fixes #0000 - NA
• [X] There are new or updated unit tests validating the change
• [X] Documentation has been updated to reflect this change
• [X] The new commits follow conventions outlined in the conventional commit spec