Add initial Microsoft Teams support

Documentation on https://github.com/42wim/matterbridge/wiki/MS-Teams-setup

vendor/github.com/yaegashi/msgraph.go/beta/CommsNotificationModel.go

@@ -0,0 +1,13 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+// CommsNotification undocumented
+type CommsNotification struct {
+	// Object is the base model of CommsNotification
+	Object
+	// ChangeType undocumented
+	ChangeType *ChangeType `json:"changeType,omitempty"`
+	// ResourceURL undocumented
+	ResourceURL *string `json:"resourceUrl,omitempty"`
+}