Anagram approaches

[sudomateo]

This pull request adds two approaches to the Anagram exercise.

• The first approach utilizes case-insensitive sorting.
• The second approach utilizes a hash map to build a frequency counter.

[sudomateo]

@sudomateo As you can see CI complains that the snippet files are too long. Can you fix that so I can merge?

Sorry! I could have sworn I pushed that commit to fix it. I'll push it when I'm back at my computer.

[sudomateo]

Updated @junedev! Sorry for the delay on that.