Move flipper plugin from flipper-lib types to flipper-common

Summary: Moved all types related to plugin descriptions from plugin-lib (which handles downloads and such) to flipper-common. The goal of that is to remove all plugin-lib usage from ui-core to server-core, so that the UI itself doesn't do any file operations anymore related to plugins. That will be done in next diffs, this just moves types but no code.

Reviewed By: nikoant, aigoncharov

Differential Revision: D32665064

fbshipit-source-id: 86d908e7264569b0229b09290a891171876c8e00

desktop/flipper-ui-core/src/chrome/PluginActions.tsx

@@ -13,10 +13,7 @@ import {
   PlusOutlined,
 } from '@ant-design/icons';
 import {Alert, Button} from 'antd';
-import {
-  BundledPluginDetails,
-  DownloadablePluginDetails,
-} from 'flipper-plugin-lib';
+import {BundledPluginDetails, DownloadablePluginDetails} from 'flipper-common';
 import React, {useMemo} from 'react';
 import {useCallback} from 'react';
 import {useDispatch, useSelector} from 'react-redux';