Add initial Microsoft Teams support

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

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

@@ -0,0 +1,15 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+// AadUserConversationMember undocumented
+type AadUserConversationMember struct {
+	// ConversationMember is the base model of AadUserConversationMember
+	ConversationMember
+	// UserID undocumented
+	UserID *string `json:"userId,omitempty"`
+	// Email undocumented
+	Email *string `json:"email,omitempty"`
+	// User undocumented
+	User *User `json:"user,omitempty"`
+}