npm scripts and pre-commit hook to enforce code standards

[gaboesquivel]

Checklist:

• Test your work and double check you didn't break anything
• Update any relevant READMEs and docs

Description:

• updates ESLint and Prettier configurations
• adds a code linting pre-commit hook
• makes standardjs.com with a couple custom overwrites the official code style
• adds npm scripts for linting and formatting

Notice that I'm not updating the code files to avoid merge conflicts later, I'm just adding the npm scripts required for now.

We are going to have to define the right time to update the files so they meet the standards without conflicting with any WIP.

In this video I explain and demo the changes:

Related to:

• Enforce code formatting Enforce code formatting #166
• Use StandardJS Use StandardJS  origin-js#166
• Use Error First and No Else Return to avoid deep nesting in JavaScript Use Error First and No Else Return to avoid deep nesting in JavaScript origin-js#193
• Async JS Guidelines Async JS Guidelines origin-js#180
• Let's use const const vs let vs var origin-js#192

[micahalcorn]

@gaboesquivel great video, thanks. I like this. As you mention, it isn't easy to find a good time to merge it. I'm also hesitant about being blocked from committing if it doesn't like my format. I might try branching from this locally and trying it out for a few days. Do I need to add some format files or are they included in the branch now?

[gaboesquivel]

Yes, all the configurations are in the package.json file.

[micahalcorn]

Closing in favor of #335 but we should revisit some of the standards proposed in this PR 👍