SupportBundles: Add OAuth bundle collectors (#64810)

* wip

* add oauth support bundles

* add specific configs for generic oauth and azureAD

* add doc entry

* optimize struct packing

* Update pkg/login/social/azuread_oauth.go

Co-authored-by: Ieva <ieva.vasiljeva@grafana.com>

* nit update

---------

Co-authored-by: Ieva <ieva.vasiljeva@grafana.com>

pkg/services/oauthtoken/oauth_token_test.go

@@ -1,6 +1,7 @@
 package oauthtoken
 
 import (
+	"bytes"
 	"context"
 	"errors"
 	"net/http"
@@ -303,6 +304,10 @@ func (m *MockSocialConnector) TokenSource(ctx context.Context, t *oauth2.Token)
 	return args.Get(0).(oauth2.TokenSource)
 }
 
+func (m *MockSocialConnector) SupportBundleContent(bf *bytes.Buffer) error {
+	return nil
+}
+
 type FakeAuthInfoStore struct {
 	login.Store
 	ExpectedError                   error