SDK and Sample v 5.21.0

Added

• workManager mechanism to call onRegisterForPushRequired every 20 days.
• updateAccountBasicInformation method to update anonymous users.
• optional onRegisterForPushRequired(PushRegistrationOrigin origin) callback with origin.
• setContentBaseUrl(String contentBaseUrl) to inAppMessagingSettings. This method sets contentBaseUrl to attach inapps to a specific domain.

Changed

• variants in inApps are now attached to clientId instead od uuid.
• Sdk is not making any calls to walkthrough endpoints.
• fresco library is now updated to 3.2.0