Add initial Microsoft Teams support

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

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

@@ -0,0 +1,15 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+// VpnProxyServer undocumented
+type VpnProxyServer struct {
+	// Object is the base model of VpnProxyServer
+	Object
+	// AutomaticConfigurationScriptURL Proxy's automatic configuration script url.
+	AutomaticConfigurationScriptURL *string `json:"automaticConfigurationScriptUrl,omitempty"`
+	// Address Address.
+	Address *string `json:"address,omitempty"`
+	// Port Port. Valid values 0 to 65535
+	Port *int `json:"port,omitempty"`
+}