For now this uses the CSS `filter` property to crudely "highlight" for the active state. This is a temporary solution until we have a real design for the active states.

These were named inconsistently in scratch-vm

After doing this, new rules began applying for some reason:

`eol-last` only began taking the 'always' parameter as of 3.6.0, so I needed to update eslint.
`no-unused-var` started warning about process.env after updating the config structure
`comma-dangle` decided to start working, maybe because of the upgrade to eslint?  Autofixed with --fix

So that you can adjust them without redefining the entire GUI.
Also allow adjusting props passed to GUIComponent.

So that it's easier to use these standalone.

And use instanceOf for the vm prop type

Move behavior-related components to "containers", leave presentation components in "components".