Feature/disable settings from node

[daredoes]

Fixes #80

Description of changes

• Adds matching enable{Attr} for each config attribute
• Adds checkboxes to enable/disable a field on click of it/label
• Allows incoming payload options to override config disables without specifying the disable attribute
• Updates preset to an integer instead of a select for 0.11 WLED release
• Adds function to get colors from current state, to be used when disabling a color from being sent. If we just pop it from the array, it'll shift the other colors rather than disable the one we didn't want.
• Refactors payload sending into two parts -- Merge incoming message payload and config payload. Incoming message payload has priority over config. -- Get state to send from merged payloads, message payload, and current colors

Checklist

If your change touches anything under src or the README.md file these items must be done:

• [X] User-facing change description added to unreleased section of CHANGELOG.md

Before

After

[neilenns]

Thanks for the pull request! This is a pretty big refactor of the code so it'll take me a bit to go through it. At first glance here are a few things to address:

1. There are lint failures due to "warp" being unused, this should get removed.
2. Lint failures too due to use of "any". I believe you can resolve this by using on the method then specifying the appropriate type when calling it.
3. All new functions need JSDoc-style comments on them to explain what they do and what the parameters are.

A couple more comments added inline for now.

Edit: Ignore the JSDoc thing, I was thinking of my other side project.