Added Email Alert Functionality

[kunalsz]

I had already implemented the email alerting functionality but given the new Alert classes ,I have reimplemented it.
In reference to the issue #126

Changes made

• Google's SMTP service has been implemented. This requires an app password and your email address to send emails
• A new file inside impossible_travel/alerting is created email_alerting.py to send the emails to a specific address using Django's send_email functionality
• tests are created to check if the email is sent correctly or not

Outcomes

• emails are generated successfully when tests are ran
• test is getting failed even when the email is being recieved in the reciever's mailbox. The issue can be with the @patch functionality implemented in the tests/test_alert_email.py. Will work on this.

placeholders are left in the place of actual email addresses and app password

Looking forward for your insights and advices !
@ManofWax

[ManofWax]

Looks good to me. Tommorrow We are going to fix the github action linter bug (it is on our side, I've already checked) and merge the PR

[ManofWax]

Hi @kunalsz, can you run linters and formatters as documented here? https://github.com/certego/BuffaLogs/blob/main/CONTRIBUTING.md

[kunalsz]

@ManofWax sure, I'll do that and update you.