Summary:
In the previous implementation plugins were downloaded from npm, but dependencies weren't. This diff uses the `live-plugin-manager` which does mostly what we want. It install a package from NPM with all its dependencies.
live-plugin-manager puts the plugin and its dependencies in the same folder. We expect the plugins to be in `node_modules`. For this reason, we are installing the plugin into `$pluginName/node_modules` and move the plugin after the installation out of the `node_modules` folder.
* Fixed plugin loading path for thirdparty plugins.
* Disabled hot reloading for plugins in the flipper folder to prevent reloads when moving around files and installing dependencies here.
* an empty `.watchmanconfig` is created, because metro requires it
* tsx files are added to the list of supported extensions for metro
Reviewed By: passy
Differential Revision: D17570413
fbshipit-source-id: ecbedc60841b36188fec9c83da41ef1f27e5e155
2c66e3d4d0