Refactor meme files to generators

[justintucker]

Addresses issue #74

Description

• Refactors remaining meme scripts to generator pattern
• Cleans up .gitignore and extra editor files
• Removes yarn lock file in favor of package-lock.json

Steps to Test

Run test script. All tests should pass.

Checklist

• [x] I have tested these code changes and included the relevant urls and screenshots.
• [ ] I have updated our build tasks accordingly (if applicable).
• [ ] I have updated our documentation accordingly (if applicable).
• [x] I have linted the code that I've included in this PR (if applicable).
• [x] My code follows the code style of this project.
• [x] My code is ready for review.

[justintucker]

@cjwilburn It looks like we may want to keep the yarn.lock file after reading through some of the other issues. I can revert that commit if you think it should stay.

[justintucker]

@cjwilburn I wonder if the hacktoberfest label is case sensitive or some other setting has to be changed. For this PR, I'm seeing the following in my dashboard:

Your PR was submitted to a repository that is not participating in Hacktoberfest. Maintainers of the repository can add the "hacktoberfest" topic to their repository if they wish to participate.

[cjwilburn]

@justintucker do you still see this in your dashboard?

[justintucker]

@cjwilburn Looks like it's updated now. Thanks!