CleverTap Push fixes

[nzagorchev]

What	Where/Who
JIRA Issue	SDK-3124
People Involved	@nzagorchev

Background

• Fix isEqualToHandledNotification for CleverTap notifications.
  If the app is launched from a CleverTap push notification, the consequent CleverTap notification opens will not work since isEqualToHandledNotification always returns true for CleverTap notifications - for notifications without notification Id (lp_occurrence_id key).

• Default CleverTap openDeepLinksInForeground to true when called from notificationOpened, unless openDeepLinksInForeground is explicitly set. Fixes an issue on Unity when the application is opened from a notification and the app takes a while to load. At that point, the notification open in CleverTap is executed when the app is in the foreground.

Implementation

• Check if notifications have a notification Id set - the id should not be equal to the default one returned by the method -1.
• openDeepLinksInForeground is nil unless set explicitly. If not set, default to the notification event being Open or Receive. Use openDeepLinksInForeground: true if Opened.

Testing steps

Is this change backwards-compatible?