Summary:
Implementing persistedState for createTablePlugin, so it doesn't lose its data when switching back and forth between plugins. When `runInBackground` is set to true on the native side, createTablePlugins are now also capable of receiving new data in the background.
Adds a test suite for createTablePlugin, to make sure it:
- returns a FlipperPlugin
- ID, title and icon are set correctly
- the resetMethod clears the data
- the persistedStateReducer correctly adds new data
Reviewed By: passy
Differential Revision: D12939848
fbshipit-source-id: 30048f3ce2bb98c83b0c165e48df72c8e28eadcd
