Add line sorting to string utils

[micahmo]

Pull request type

Please check the type of change your PR introduces:

• Bugfix
• New feature or enhancement
• UI change (please include screenshot!)
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation content changes
• Internationalization and localization
• Other (please describe):

What is the current behavior?

Issue Number: #232

What is the new behavior?

Add the following functions to the string utilities tool. These operate on lines of text.

• Alphabetize
• Reverse alphabetize
• Alphabetize by last word
• Reverse alphabetize by last word
• Reverse
• Randomize

DevToys-Alphabetize-Demo.mp4

Other information

All of the line splitting is done on CR (\r). I noticed that this is the line separator used for typed text and loaded files using any line endings (CR, LF,"or or CRLF). I don't really understand why, but it seems consistent.

For sorting by last word, I'm splitting on space and also comma (to accommodate CSV and last,first formatting).

It might be ever so slightly confusing that the "Original text" button is under the "Convert" heading. Maybe we could consider making it a highlighted/action button.

Quality check

Before creating this PR:

• Did you follow the code style guideline as described in CONTRIBUTING.md
• Did you build the app and test your changes?
• Did you check for accessibility? On Windows, you can use Accessibility Insights for this.
• Did you verify that the change work in Release build configuration
• Did you verify that all unit tests pass
• If necessary and if possible, did you verify your changes on:
  • Windows
  • macOS (DevToys 2.0)
  • Linux (DevToys 2.0)

[celluj34]

An interface could be introduced, then we could mock and guarantee results, something like https://stackoverflow.com/a/311829/17052649 if that's acceptable.

[micahmo]

Not a bad idea. I hadn't dived into how DI is set up, so I wasn't sure if I could inject the real Random though the constructor. Also thought it might be a bit overkill. I guess I'll leave this one up to the maintainer.

[veler]

Approved. Thank you again for this improvement!