Plugins: Add support for joplin.plugins.require API to allow using sqlite3 or fs-extra from a plugin

packages/app-cli/tests/support/plugins/nativeModule/api/JoplinPlugins.d.ts

@@ -0,0 +1,43 @@
+import Plugin from '../Plugin';
+import { ContentScriptType, Script } from './types';
+/**
+ * This class provides access to plugin-related features.
+ */
+export default class JoplinPlugins {
+    private plugin;
+    constructor(plugin: Plugin);
+    /**
+     * Registers a new plugin. This is the entry point when creating a plugin. You should pass a simple object with an `onStart` method to it.
+     * That `onStart` method will be executed as soon as the plugin is loaded.
+     *
+     * ```typescript
+     * joplin.plugins.register({
+     *     onStart: async function() {
+     *         // Run your plugin code here
+     *     }
+     * });
+     * ```
+     */
+    register(script: Script): Promise<void>;
+    /**
+     * @deprecated Use joplin.contentScripts.register()
+     */
+    registerContentScript(type: ContentScriptType, id: string, scriptPath: string): Promise<void>;
+    /**
+     * Gets the plugin own data directory path. Use this to store any plugin-related data.
+     */
+    dataDir(): Promise<string>;
+    /**
+     * It is not possible to bundle native packages with a plugin, because they
+     * need to work cross-platforms. Instead access to certain useful native
+     * packages is provided using this function.
+     *
+     * Currently these packages are available:
+     *
+     * - [sqlite3](https://www.npmjs.com/package/sqlite3)
+     * - [fs-extra](https://www.npmjs.com/package/fs-extra)
+     *
+     * [View the demo plugin](https://github.com/laurent22/joplin/tree/dev/packages/app-cli/tests/support/plugins/nativeModule)
+     */
+    require(_path: string): any;
+}