feat(nativegeocoder): add NativeGeocoder plugin (#800)

src/plugins/native-geocoder.ts

@@ -0,0 +1,90 @@
+import { Plugin, Cordova } from './plugin';
+
+/**
+ * @name NativeGeocoder
+ * @description
+ * Cordova plugin for native forward and reverse geocoding
+ *
+ * @usage
+ * ```typescript
+ * import { NativeGeocoder } from 'ionic-native';
+ *
+ * NativeGeocoder.reverseGeocode(52.5072095, 13.1452818)
+ *   .then((result: ReverseResult) => console.log("The address is " + result.address + " in " + result.countryCode))
+ *   .catch((error: any) => console.log(error));
+ * 
+ * NativeGeocoder.forwardGeocode("Berlin")
+ *   .then((coordinates: ForwardResult) => console.log("The coordinates are latitude=" + coordinates.latitude + " and longitude=" + coordinates.longitude))
+ *   .catch((error: any) => console.log(error));
+ * ```
+ */
+@Plugin({
+  name: 'NativeGeocoder',
+  plugin: 'cordova-plugin-nativegeocoder',
+  pluginRef: 'nativegeocoder',
+  repo: 'https://github.com/sebastianbaar/cordova-plugin-nativegeocoder',
+  platforms: ['iOS', 'Android']
+})
+export class NativeGeocoder {
+
+  /**
+   * Reverse geocode a given latitude and longitude to find location address
+   * @param latitude {number} The latitude
+   * @param longitude {number} The longitude
+   * @return {Promise<any>}
+   */
+  @Cordova()
+  static reverseGeocode(latitude: number, longitude: number): Promise<ReverseResult> { return; }
+
+  /**
+   * Forward geocode a given address to find coordinates
+   * @param addressString {string} The address to be geocoded
+   * @return {Promise<any>}
+   */
+  @Cordova()
+  static forwardGeocode(addressString: string): Promise<ForwardResult> { return; }
+
+}
+
+/**
+ * Encapsulates format information about a reverse geocoding result.
+ */
+export interface ReverseResult {
+  /**
+   * The street.
+   */
+  street: string;
+  /**
+   * The house number.
+   */
+  houseNumber: string;
+  /**
+   * The postal code.
+   */
+  postalCode: string;
+  /**
+   * The city.
+   */
+  city: string;
+  /**
+   * The country name.
+   */
+  countryName: string;
+  /**
+   * The country code.
+   */
+  countryCode: string;
+}
+/**
+ * Encapsulates format information about a forward geocoding result.
+ */
+export interface ForwardResult {
+  /**
+   * The latitude.
+   */
+  latitude: string;
+  /**
+   * The longitude.
+   */
+  longitude: string;
+}