Add mail logging feature to bulk email sender

[Piumal1999]

Is your feature request related to a problem? Please describe.
The email logging service only works with the ProgramState change emails. We need to add the logging functionality to the bulk email service as well.

Describe the solution you'd like
When we send emails using the bulk email feature, the backend should save the sent email details in the DB

Describe alternatives you've considered
N/A

Additional context
N/A

Related PR
#330

[YoshithaRathnayake]

Will I able to do this issue @Piumal1999 ?