A source of Plugin implementations.
scanForExtensions(extensionPoint: string): AsyncIterable<Readonly<ExtensionEntry>>
      
    Return an ExtensionEntry for each Extension hosted in the Plugin Repository which provides an Extension for the specified Extension Point.
getExtensionDescriptorFromExtensionEntry(extensionEntry: ExtensionEntry): Promise<Readonly<ExtensionDescriptor>>
      
    Return the ExtensionDescriptor for the Extension identified by the specified ExtensionEntry.