Add initial Microsoft Teams support

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

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

@@ -0,0 +1,11 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+// DeliveryOptimizationGroupIDCustom undocumented
+type DeliveryOptimizationGroupIDCustom struct {
+	// DeliveryOptimizationGroupIDSource is the base model of DeliveryOptimizationGroupIDCustom
+	DeliveryOptimizationGroupIDSource
+	// GroupIDCustom Specifies an arbitrary group ID that the device belongs to
+	GroupIDCustom *string `json:"groupIdCustom,omitempty"`
+}