Add initial Microsoft Teams support

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

vendor/github.com/yaegashi/msgraph.go/beta/Office365ActivationsUserCountsModel.go

@@ -0,0 +1,21 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+import "time"
+
+// Office365ActivationsUserCounts undocumented
+type Office365ActivationsUserCounts struct {
+	// Entity is the base model of Office365ActivationsUserCounts
+	Entity
+	// ReportRefreshDate undocumented
+	ReportRefreshDate *time.Time `json:"reportRefreshDate,omitempty"`
+	// ProductType undocumented
+	ProductType *string `json:"productType,omitempty"`
+	// Assigned undocumented
+	Assigned *int `json:"assigned,omitempty"`
+	// Activated undocumented
+	Activated *int `json:"activated,omitempty"`
+	// SharedComputerActivation undocumented
+	SharedComputerActivation *int `json:"sharedComputerActivation,omitempty"`
+}