Add initial Microsoft Teams support

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

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

@@ -0,0 +1,15 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+// InvitedUserMessageInfo undocumented
+type InvitedUserMessageInfo struct {
+	// Object is the base model of InvitedUserMessageInfo
+	Object
+	// CcRecipients undocumented
+	CcRecipients []Recipient `json:"ccRecipients,omitempty"`
+	// MessageLanguage undocumented
+	MessageLanguage *string `json:"messageLanguage,omitempty"`
+	// CustomizedMessageBody undocumented
+	CustomizedMessageBody *string `json:"customizedMessageBody,omitempty"`
+}