feat(provider): add basic msgraph api provider

[Lwtsde]

What kind of change does this PR introduce?

This PR introduces the MS GraphAPI to novu. see https://learn.microsoft.com/en-us/graph/api/user-sendmail?view=graph-rest-1.0&tabs=http

• [ ] Bug
• [x] Feature
• [ ] Docs
• [ ] Other(s)

Why was this change needed?

I need to send emails through the Microsoft Graph API.

Other information (Screenshots)

This is a very basic implementation.

[LetItRock]

@Lwtsde overall looks good 👍 but there are many small things that need to be changed 🙂 thanks for your effort!

[Lwtsde]

Thanks for your feedback. I am looking forward to fix the issues by Thursday :)

[scopsy]

Hi @Lwtsde did you had a chance to take a look at it? Let me know if help needed 🙏

[Lwtsde]

Hi @scopsy , i am currently very busy. I will see if i can resolve these issues by next week :)

[jainpawan21]

Hi @Lwtsde Let me know if you need any help!

[wh1337]

I might try and pick this up and fix the comments. Recently our requirements have changed and we too need this.

[p-fernandez]

Closing for inactivity. Feel free to reopen in the future.