Switch to babili

[thuringia]

Issue: Replace webpack's UglifyJS plugin with babili

What I did

These steps have been made the react app and the react-native app.

1. Add babel-preset-babili and babili-webpack-plugin to package.json
2. Add preset for production environment in .babelrc
3. Replace UglifyJS plugin in webpack.prod.js

I have added the preset as well as the plugin due to issues with babili-webpack-plugin and dynamic imports or blocks of dead code. Running each file though the preset prevents these whereas the plugin will optimize the complete bundle including node_modules.

How to test

Create a production build.

fixes #1005

[codecov]

Codecov Report

Merging #1414 into master will decrease coverage by 0.19%.
The diff coverage is 0%.

@@            Coverage Diff            @@
##           master    #1414     +/-   ##
=========================================
- Coverage   14.54%   14.35%   -0.2%     
=========================================
  Files         202      201      -1     
  Lines        4649     4613     -36     
  Branches      494      507     +13     
=========================================
- Hits          676      662     -14     
+ Misses       3554     3507     -47     
- Partials      419      444     +25

Impacted Files	Coverage Δ
...ct-native/src/server/config/webpack.config.prod.js	0% <0%> (ø)	⬆️
app/react/src/server/config/webpack.config.prod.js	0% <0%> (ø)	⬆️
.../ui/src/modules/ui/components/left_panel/header.js	27.58% <0%> (-0.99%)	⬇️
addons/knobs/src/components/PropField.js	10.86% <0%> (ø)	⬆️
.../src/manager/containers/CommentsPanel/dataStore.js	34.78% <0%> (ø)	⬆️
...b/ui/src/modules/ui/components/down_panel/index.js	96% <0%> (ø)	⬆️
addons/storyshots/src/require_context.js	0% <0%> (ø)	⬆️
addons/knobs/src/components/types/Number.js	8.06% <0%> (ø)	⬆️
addons/info/src/components/Props.js	0% <0%> (ø)	⬆️
lib/ui/src/modules/api/configs/init_api.js	40.47% <0%> (ø)	⬆️
... and 37 more

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[ndelangen]

Thanks for this PR!

Can you provide statistics on impact?
filesize, execution time, browser support?

[thuringia]

I'll add some statistics over the weekend

[ndelangen]

I'm going to revisit this later.

@thuringia If you want to still add a impact analysis I would be super grateful !