[Home Page Picker] Add Analytic keys for Site Creation flow (#279)

* Add Analytic keys for Site Creation flow

* Update PodSpec

Author: Chip

WordPressShared.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name          = "WordPressShared"
-  s.version       = "1.12.0"
+  s.version       = "1.13.0-beta.1"
   s.summary       = "Shared components used in building the WordPress iOS apps and other library components."
 
   s.description   = <<-DESC

WordPressShared/Core/Analytics/WPAnalytics.h

@@ -131,6 +131,12 @@ typedef NS_ENUM(NSUInteger, WPAnalyticsStat) {
     WPAnalyticsStatEnhancedSiteCreationAccessed,
     WPAnalyticsStatEnhancedSiteCreationSegmentsViewed,
     WPAnalyticsStatEnhancedSiteCreationSegmentsSelected,
+    WPAnalyticsStatEnhancedSiteCreationSiteDesignViewed,
+    WPAnalyticsStatEnhancedSiteCreationSiteDesignSelected,
+    WPAnalyticsStatEnhancedSiteCreationSiteDesignSkipped,
+    WPAnalyticsStatEnhancedSiteCreationSiteDesignPreviewViewed,
+    WPAnalyticsStatEnhancedSiteCreationSiteDesignPreviewLoading,
+    WPAnalyticsStatEnhancedSiteCreationSiteDesignPreviewLoaded,
     WPAnalyticsStatEnhancedSiteCreationVerticalsViewed,
     WPAnalyticsStatEnhancedSiteCreationVerticalsSelected,
     WPAnalyticsStatEnhancedSiteCreationVerticalsSkipped,