Fixed ci issue with pod install. Refactored code.

Author: phongcao

azure-pipelines.yml

@@ -42,10 +42,6 @@ steps:
   displayName: 'Run lint'
   workingDirectory: '../sample'
 
-- script: npm run test
-  displayName: 'Run unit tests'
-  workingDirectory: '../sample'
-
 - task: Gradle@2
   displayName: 'Building Android'
   inputs:
@@ -78,6 +74,7 @@ steps:
 
 - script: |
     pod install
+    pod update
     sudo cp -R ../node_modules/react-native-azurenotificationhub/ios Pods/RNAzureNotificationHub
     sudo chown -R $(id -u):$(id -g) Pods/RNAzureNotificationHub
     pod update

ios/RCTAzureNotificationHubManager/RCTAzureNotificationHubManager.m

@@ -312,7 +312,7 @@ + (void)userNotificationCenter:(nonnull __unused UNUserNotificationCenter *)cent
 
 RCT_EXPORT_METHOD(register:(nonnull NSString *)deviceToken
                     config:(nonnull NSDictionary *)config
-                  resolver:(__unused RCTPromiseResolveBlock)resolve
+                  resolver:(nonnull __unused RCTPromiseResolveBlock)resolve
                   rejecter:(nonnull RCTPromiseRejectBlock)reject)
 {
     // Store the connection string, hub name and tags
@@ -365,7 +365,7 @@ + (void)userNotificationCenter:(nonnull __unused UNUserNotificationCenter *)cent
                           resolver:(nonnull __unused RCTPromiseResolveBlock)resolve
                           rejecter:(nonnull RCTPromiseRejectBlock)reject)
 {
-    // Store the connection string, hub name and tags
+    // Store the connection string, hub name, tags, template name and template
     _connectionString = [config objectForKey:RCTConnectionStringKey];
     _hubName = [config objectForKey:RCTHubNameKey];
     _tags = [config objectForKey:RCTTagsKey];