feat: Add three algorithms

[ghost]

These were really easy to add, they're functionally identical to the ones in the older repository, the only thing I changed was proper tests for reverse (it only had palindromes) and morse, which never attempted decoding.

What does this PR do?

Added the following ciphers and string manipulation algorithms:

• Reverse
• Morse
• VIgenere

All Submissions:

• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

New Feature Submissions:

1. Does your submission pass tests?
2. Have you lint your code locally prior to submission?

[alexfertel]

Thanks for doing this! ❤️

The formatter failed cause of the import order, so that should be easy to fix (not sure why it didn't fail locally). There is some minor stuff as well, should be quick! Also, remember to update the README with the added algos, that way we keep track of stuff.

Otherwise looks good to me. I learned a couple of things too, so thank you again!

[ghost]

I just changed it by adding #[cfg(test)] above the decode function

[ghost]

Odd, GH tells me theres a review requesting change but I can't find one, all four are resolved.

[alexfertel]

Hmmm, not sure, it looks good to me!

[ghost]

Hmmm, not sure, it looks good to me!

Probably GH just being weird, hope the checks pass :)

[ghost]

oof, I'll have a look at that soon

[alexfertel]

Woohoo! GJ!

[ghost]

There we go, nice.