Move DataInspector to flipper-plugin

Summary:
This diff moves the rest of the DataInspector jungle to flipper-plugin. No actual improvements are made yet, but the code is decoupled from Electron and the legacy theming. For example by using Antd based context menus.

Note that `ManagedDataInspector` is now rebranded `DataInspector`, as that is the only variation that should (and is) used publicly.

For the interactionTracker removal, see next diff.

SearchableDataInspector will be addressed in a next diff

Reviewed By: passy

Differential Revision: D27603125

fbshipit-source-id: 188bd000260e4e4704202ce02c7fc98319f0bc22

desktop/types/index.d.ts

@@ -26,4 +26,3 @@
 /// <reference path="nodejs.d.ts" />
 /// <reference path="npm-api.d.ts" />
 /// <reference path="openssl-wrapper.d.ts" />
-/// <reference path="string-natural-compare.d.ts" />

desktop/types/string-natural-compare.d.ts

@@ -1,12 +0,0 @@
-/**
- * Copyright (c) Facebook, Inc. and its affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @format
- */
-
-declare module 'string-natural-compare' {
-  export default function naturalCompare(a: string, b: string): number;
-}