feat(clover-go): add CloverGo plugin (#3376)

* feat(clovergo): add CloverGo plugin

* fix(clovergo): remove template comments and added dscription

* fix(clovergo): Remove template comments, empty property and returned response interface

* fix(clovergo): Updated comments with correct returned response interface

src/@ionic-native/plugins/clover-go/index.ts

@@ -0,0 +1,105 @@
+import { Injectable } from '@angular/core';
+import { Plugin, Cordova, CordovaProperty, CordovaInstance, InstanceProperty, IonicNativePlugin } from '@ionic-native/core';
+import { Observable } from 'rxjs';
+
+export interface Response {
+  type?: string;
+  message?: string;
+  reason?: string;
+}
+export interface InitResponse extends Response {
+  merchantName?: string;
+}
+export interface SaleResponse extends Response {
+  paymentId?: string;
+  transactionType?: string;
+  entryType?: string;
+  cardFirst6?: string;
+  cardLast4?: string;
+}
+
+/**
+ * @name Clover Go
+ * @description
+ * This plugin connect to Clover Go payment device and process payments.
+ *
+ * @usage
+ * ```typescript
+ * import { CloverGo } from '@ionic-native/clover-go/ngx';
+ *
+ *
+ * constructor(private cloverGo: CloverGo) { }
+ *
+ * ...
+ *
+ *
+ * this.cloverGo.init(configuration)
+ *   .then((res: any) => console.log(res))
+ *   .catch((error: any) => console.error(error));
+ *
+ * this.cloverGo.connect()
+ *   .then((res: any) => console.log(res))
+ *   .catch((error: any) => console.error(error));
+ *
+ * this.cloverGo.disconnect()
+ *   .then((res: any) => console.log(res))
+ *   .catch((error: any) => console.error(error));
+ *
+ * this.cloverGo.sale(saleInfo)
+ *   .then((res: any) => console.log(res))
+ *   .catch((error: any) => console.error(error));
+ *
+ * ```
+ */
+@Plugin({
+  pluginName: 'CloverGo',
+  plugin: 'cordova-plugin-clovergo',
+  pluginRef: 'clovergo',
+  repo: 'https://github.com/hotwax/cordova-plugin-clovergo',
+  install: 'ionic plugin add cordova-plugin-clovergo',
+  platforms: ['Android', 'iOS']
+})
+@Injectable()
+export class CloverGo extends IonicNativePlugin {
+
+  /**
+   * This function initialises Clover Go SDK
+   * @param configuration {object}
+   * @return {Promise<InitResponse>}
+   */
+  @Cordova()
+  init(configuration: object): Promise<InitResponse> {
+    return;
+  }
+
+  /**
+   * This function connects to available clover go device
+   *
+   * @return {Promise<Response>}
+   */
+  @Cordova()
+  connect(): Promise<Response> {
+    return;
+  }
+
+  /**
+   * This function disconnects to available clover go device
+   *
+   * @return {Promise<Response>}
+   */
+  @Cordova()
+  disconnect(): Promise<Response> {
+    return;
+  }
+
+  /**
+   * This function initiate sale for Clover Go device
+   * @param saleInfo {object}
+   * @return {Promise<SaleResponse>}
+   */
+  @Cordova()
+  sale(saleInfo: object): Promise<SaleResponse> {
+    return;
+  }
+
+}