feat(multiple-document-picker): add plugin (#3551)

* feat(multiple-document-picker): add plugin

* removed package json related changes

src/@ionic-native/plugins/multiple-document-picker/index.ts

@@ -0,0 +1,47 @@
+/**
+ * This is a wrapper for MultipleDocumentsPicker plugin
+ *
+ */
+import { Injectable } from '@angular/core';
+import { Plugin, Cordova, IonicNativePlugin } from '@ionic-native/core';
+
+/**
+ * @name Multiple Documents Picker
+ * @description
+ * This plugin allows users to pick multiple documents/images at once
+ *
+ * @usage
+ * ```typescript
+ * import { MultipleDocumentsPicker } from '@ionic-native/multiple-document-picker/ngx';
+ *
+ *
+ * constructor(private multipleDocumentsPicker: MultipleDocumentsPicker) { }
+ *
+ * ...
+ *
+ *
+ * this.multipleDocumentsPicker.pick(1)
+ *   .then((res: any) => console.log(res))
+ *   .catch((error: any) => console.error(error));
+ *
+ * ```
+ */
+@Plugin({
+  pluginName: 'MultipleDocumentsPicker',
+  plugin: 'cordova-plugin-multiple-documents-picker',
+  pluginRef: 'multipleDocumentsPicker',
+  repo: 'https://github.com/akeotech/cordova-plugin-multiple-documents-picker',
+  platforms: ['Android', 'iOS'],
+})
+@Injectable()
+export class MultipleDocumentsPicker extends IonicNativePlugin {
+  /**
+   * This function allow user to show native file picker
+   * @param type {number} To pick type of files: for images send 1, for all files send 2
+   * @return {Promise<any>} Returns a promise that resolves when something happens
+   */
+  @Cordova()
+  pick(type: number): Promise<any> {
+    return; // We add return; here to avoid any IDE / Compiler errors
+  }
+}