Add initial Microsoft Teams support

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

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

@@ -0,0 +1,15 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+// CommsOperation undocumented
+type CommsOperation struct {
+	// Entity is the base model of CommsOperation
+	Entity
+	// Status undocumented
+	Status *OperationStatus `json:"status,omitempty"`
+	// ClientContext undocumented
+	ClientContext *string `json:"clientContext,omitempty"`
+	// ResultInfo undocumented
+	ResultInfo *ResultInfo `json:"resultInfo,omitempty"`
+}