Add initial Microsoft Teams support

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

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

@@ -0,0 +1,21 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+import "time"
+
+// LocalizedNotificationMessage The text content of a Notification Message Template for the specified locale.
+type LocalizedNotificationMessage struct {
+	// Entity is the base model of LocalizedNotificationMessage
+	Entity
+	// LastModifiedDateTime DateTime the object was last modified.
+	LastModifiedDateTime *time.Time `json:"lastModifiedDateTime,omitempty"`
+	// Locale The Locale for which this message is destined.
+	Locale *string `json:"locale,omitempty"`
+	// Subject The Message Template Subject.
+	Subject *string `json:"subject,omitempty"`
+	// MessageTemplate The Message Template content.
+	MessageTemplate *string `json:"messageTemplate,omitempty"`
+	// IsDefault Flag to indicate whether or not this is the default locale for language fallback. This flag can only be set. To unset, set this property to true on another Localized Notification Message.
+	IsDefault *bool `json:"isDefault,omitempty"`
+}