chore: Add Related Digital SDK and dependencies for Android

[onatvaris]

• Add below lines to your android/app/build.gradle file's bottom.

  apply plugin: 'com.google.gms.google-services'
  apply plugin: 'com.huawei.agconnect'

• Add below line to your android/app/build.gradle file's defaultConfig section.

  multiDexEnabled true

• Add below code to your AndroidManifest.xml file's application section to receive notifications when the app is foreground.

  <service
  android:name="euromsg.com.euromobileandroid.service.EuroFirebaseMessagingService"
  android:exported="false">
  <intent-filter>
      <action android:name="com.google.firebase.MESSAGING_EVENT" />
  </intent-filter>
  </service>

* If you are going to do Huawei integration, add the following lines to the file.

<service
    android:name="euromsg.com.euromobileandroid.service.EuroHuaweiMessagingService"
    android:exported="false">
    <intent-filter>
      <action  android:name="com.huawei.push.action.MESSAGING_EVENT"  />
    </intent-filter>
</service>

• Add below code to your AndroidManifest.xml file's application section to enable geofence capability.

  
  <service
  android:name="com.visilabs.gps.geofence.GeofenceTransitionsIntentService"
  android:enabled="true"
  android:permission="android.permission.BIND_JOB_SERVICE" />

<service android:name="com.visilabs.gps.geofence.GeofenceMonitor" android:enabled="true" android:exported="true" />

<receiver android:name="com.visilabs.gps.geofence.GeofenceTransitionsReceiver" android:enabled="true" android:exported="true">

<receiver android:name="com.visilabs.gps.geofence.VisilabsAlarm" android:exported="false" />

<receiver android:name="com.visilabs.gps.geofence.GeofenceBroadcastReceiver" android:enabled="true" android:exported="true" />

* Modify your `MainApplication.java` as below to init library. Change geofenceEnabled parameter as you want.
```java
import com.visilabs.Visilabs;
import euromsg.com.euromobileandroid.EuroMobileManager;

@Override
public void onCreate() {
  // ...

  initEuroMessage();
}

private void initEuroMessage() {
    String appAlias = "demo-alias";
    String huaweiAppAlias = "demo-alias-huawei";
    String organizationId = "OID";
    String siteId = "SID";
    String datasource = "datasource";
    String channel = "Android";
    String segmentUrl = "http://lgr.visilabs.net";
    String realtimeUrl = "http://rt.visilabs.net";
    String targetUrl = "http://s.visilabs.net/json";
    String actionUrl = "http://s.visilabs.net/actjson";
    String geofenceUrl = "http://s.visilabs.net/geojson";

    Visilabs.CreateAPI(organizationId, siteId, segmentUrl,
            datasource, realtimeUrl, channel, this, targetUrl, actionUrl, 30000, geofenceUrl, true, "reactnative");

    EuroMobileManager euroMobileManager = EuroMobileManager.init(appAlias, huaweiAppAlias, this);

    // optional
    euroMobileManager.setPushIntent("com.pushsdk.MainActivity", this);
    euroMobileManager.setNotificationTransparentSmallIcon(R.drawable.ic_launcher, this);
    euroMobileManager.setNotificationTransparentSmallIconDarkMode(R.drawable.ic_launcher, this);
    euroMobileManager.useNotificationLargeIcon(true);
    euroMobileManager.setNotificationLargeIcon(R.drawable.ic_launcher, this);
    euroMobileManager.setNotificationLargeIconDarkMode(R.drawable.ic_launcher, this);
    euroMobileManager.setNotificationColor("#d1dbbd");
    euroMobileManager.setChannelName("Channel", this);
    euroMobileManager.setNotificationPriority(RDNotificationPriority.NORMAL, this); // Set to HIGH for push notifications to appear as temporary banners
}