share code between hooks and classes

[drcmda]

First draft that would practically take hooks and classes under one roof with a shared api, using hooks as backbone. Downsides of course are regressions like "auto". Upsides are 8.x'es refreshed api and new capabilities.

[drcmda]

This pull request introduces 1 alert when merging c7e924b into 0ebbf23 - view on LGTM.com

new alerts:

• 1 for Unused variable, import, function or class

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Comment posted by LGTM.com

[jacobrask]

I think if we remove auto it would be nice with an official way of doing it, like you recommended d3-ease when removing the easing function. So:

1. A warning when trying to assign Animated<auto> to width/height of an animated element, with a link to:
2. An easy refactoring path for different cases

[drcmda]

@jacobrask Maybe there's still a way, i was thinking about perhaps adding something back like injects or a Globals.use(...) api. When i think of auto today an inject could maybe drop a resize observer (leaving polyfills to the end-user) which can update the owning controller on size changes (or flip to "auto" when needed).

[aleclarson]

Merged into #632 🎉