Add graph template and oauth config to python CLI

[MehakBindra]

1. In .vscode remove configuration for starting app in test tools.
2. Add aad.manifest.json to add:

      "resourceAppId": "Microsoft Graph",
      "resourceAccess": [
        {
          "id": "User.Read",
          "type": "Scope"
        }
      ]

3. Make bot SINGLE TENANT in azurebot.bicep.

    msaAppId: botAadAppClientId
    msaAppType: 'SingleTenant'
    msaAppTenantId: tenantId

4. Add botServicesMicrosoftGraphConnection resource in azurebot.bicep with correct scopes:
   scopes: 'User.Read'
5. With the graph template, user can do sign in with graph and view profile and mail info.

CAVEAT: currently need to create Service Principal manually when app is registered.
Should be automated soon.

[lilyydu]

Awesome job figuring this out, @MehakBindra!! Just a small nit with the AppOptions

[singhk97]

lgtm