useAtomsDevtools: Show all atoms updated by a write

[justjake]

Draft PR to address one idea in #931.

The idea of this PR is to records all the atoms changed during an atom write into an event, and then uses that event data to enhance redux devtools.

I think I need to propagate the write event through all codepaths that call flushPending.

Here's a screenshot of the goal:

for this example component:

[vercel]

This pull request is being automatically deployed with Vercel (learn more).
To see the status of your deployment, click below or on the icon next to each commit.

🔍 Inspect: https://vercel.com/pmndrs/jotai/EnXBomWGfqUWoW8WvXew9PyRCMwt
✅ Preview: https://jotai-git-fork-justjake-devtools-grouping-pr-pmndrs.vercel.app

[codesandbox-ci]

This pull request is automatically built and testable in CodeSandbox.

To see build info of the built libraries, click here or the icon next to each commit SHA.

Latest deployment of this branch, based on commit 2e93842:

Sandbox	Source
React	Configuration
React Typescript	Configuration
React Browserify	Configuration
React Snowpack	Configuration
Next.js	Configuration
Next.js with custom Babel config	Configuration
React with custom Babel config	Configuration

[dai-shi]

Closing this for now. Let's continue discussion in #931.