task(SDK-4057) - Revamped Timer Notification Template

[Anush-Shand]

https://wizrocket.atlassian.net/browse/SDK-4057

• The idea is such that the timer notification shown will be the compulsory FGS notification
• The existing implementation has been used to prepare the notification builder for the timer template
• If the service is not declared in the manifest, then the older approach is used to render the timer notification