Extend device plugin metadata to include supported devices

Summary: Plugin metadata format extended to include type of each plugin (client / device) and list of supported devices (android/ios/..., emulator/physical, etc). This will allow to detect plugins supported by device even if they are not installed and only available on Marketplace.

Reviewed By: mweststrate

Differential Revision: D26073531

fbshipit-source-id: e331f1be1af1046cd4220a286a1d52378c26cc53

desktop/plugin-lib/src/__tests__/getUpdatablePlugins.node.ts

@@ -60,6 +60,7 @@ const installedPlugins: InstalledPluginDetails[] = [
     entry: './test/index.js',
     version: '0.1.0',
     specVersion: 2,
+    pluginType: 'client',
     main: 'dist/bundle.js',
     dir: '/Users/mock/.flipper/thirdparty/flipper-plugin-sample1',
     source: 'src/index.js',
@@ -74,6 +75,7 @@ const installedPlugins: InstalledPluginDetails[] = [
     entry: './test/index.js',
     version: '0.2.0',
     specVersion: 2,
+    pluginType: 'client',
     main: 'dist/bundle.js',
     dir: '/Users/mock/.flipper/thirdparty/flipper-plugin-sample2',
     source: 'src/index.js',