Initial logs with datasource / datatable setup

Summary:
First rudementary setup of DataTable component that follows a data source. Initially used react-virtuose library, but it performed really badly by doing expensive layout shifts and having troublesome scroll handling. Switched to react-virtual library, which is a bit more level, but much more efficient, and the source code is actually understandable :)

Features:
- hook up to window events of datasource
- high and low prio rendering, based on where the change is happening (should be optimized further)
- sticky scrolling support
- initial column configuration (custom rendering, styling, columns etc will follow in next diffs)

Reviewed By: nikoant

Differential Revision: D26175665

fbshipit-source-id: 224be13b1b32d35e7e01c1dc4198811e2af31102

docs/extending/flipper-plugin.mdx

@@ -439,6 +439,7 @@ console.log(rows.get().length) // 2
 ```
 
 ### createDataSource
+### DataSource
 
 Coming soon.
 
@@ -500,6 +501,10 @@ See [Tracked](#tracked) for more info.
 Layout elements can be used to organize the screen layout. 
 See `View > Flipper Style Guide` inside the Flipper application for more details.
 
+### DataTable
+
+Coming soon.
+
 ### NUX
 
 An element that can be used to provide a New User eXperience: Hints that give a one time introduction to new features to the current user.