React-native-debugger: Add mobx-devtools support

[khomyakov42]

Please add mobx dev tools. https://chrome.google.com/webstore/detail/mobx-developer-tools/pfgnfdagidkfgccljigdamigbcnndkod

[jhen0409]

I haven't used it, please proposal how to integrate it, I'll consider to accept any contributions about this.

[petrbela]

For anyone who stumbles upon this, mobx works automatically as demoed in https://github.com/jhen0409/react-native-debugger/tree/master/examples/counter-with-mobx; you just need to install mobx-remotedev in your project and decorate the stores.

@jhen0409 Close the issue?

[FredyC]

There is a different Mobx Devtool now, much more useful, especially for MST users ... https://github.com/mobxjs/mobx-devtools

It works as a browser extension, so I assume integration should be pretty straightforward as with Redux one?

[baygeldin]

Regarding mobx-remotedev: it doesn't work with MobX 4, mostly because it still relies on extras namespace which was deprecated. getDebugName is in root namespace now. And since the project hasn't been active for almost a year now, I doubt that it's going to change (but one can fork it though).