move plugin management from ui-core to server-core

Summary:
Follow up of D32665064, this diff moves all plugin management logic from flipper-ui to flipper-server. Things like downloading, installing, querying new plugins.

Loading plugins is handled separately in the next diff.

Reviewed By: nikoant

Differential Revision: D32666537

fbshipit-source-id: 9786b82987f00180bb26200e38735b334dc4d5c3

desktop/plugin-lib/src/getUpdatablePlugins.ts

@@ -7,29 +7,21 @@
  * @format
  */
 
-import {InstalledPluginDetails} from 'flipper-common';
+import {
+  UpdatablePluginDetails,
+  UpdateResult,
+  getPluginDetails,
+} from 'flipper-common';
 import {getInstalledPlugins} from './pluginInstaller';
 import semver from 'semver';
 import {getNpmHostedPlugins, NpmPackageDescriptor} from './getNpmHostedPlugins';
 import NpmApi from 'npm-api';
-import {getInstalledPluginDetails, getPluginDetails} from './getPluginDetails';
+import {getInstalledPluginDetails} from './getPluginDetails';
 import {getPluginVersionInstallationDir} from './pluginPaths';
 import pmap from 'p-map';
 import {notNull} from './typeUtils';
 const npmApi = new NpmApi();
 
-export type UpdateResult =
-  | {kind: 'not-installed'; version: string}
-  | {kind: 'up-to-date'}
-  | {kind: 'error'; error: Error}
-  | {kind: 'update-available'; version: string};
-
-export type UpdatablePlugin = {
-  updateStatus: UpdateResult;
-};
-
-export type UpdatablePluginDetails = InstalledPluginDetails & UpdatablePlugin;
-
 export async function getUpdatablePlugins(
   query?: string,
 ): Promise<UpdatablePluginDetails[]> {