Add initial Microsoft Teams support

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

vendor/github.com/yaegashi/msgraph.go/beta/Office365ActiveUserCountsModel.go

@@ -0,0 +1,31 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+import "time"
+
+// Office365ActiveUserCounts undocumented
+type Office365ActiveUserCounts struct {
+	// Entity is the base model of Office365ActiveUserCounts
+	Entity
+	// ReportRefreshDate undocumented
+	ReportRefreshDate *time.Time `json:"reportRefreshDate,omitempty"`
+	// Office365 undocumented
+	Office365 *int `json:"office365,omitempty"`
+	// Exchange undocumented
+	Exchange *int `json:"exchange,omitempty"`
+	// OneDrive undocumented
+	OneDrive *int `json:"oneDrive,omitempty"`
+	// SharePoint undocumented
+	SharePoint *int `json:"sharePoint,omitempty"`
+	// SkypeForBusiness undocumented
+	SkypeForBusiness *int `json:"skypeForBusiness,omitempty"`
+	// Yammer undocumented
+	Yammer *int `json:"yammer,omitempty"`
+	// Teams undocumented
+	Teams *int `json:"teams,omitempty"`
+	// ReportDate undocumented
+	ReportDate *time.Time `json:"reportDate,omitempty"`
+	// ReportPeriod undocumented
+	ReportPeriod *string `json:"reportPeriod,omitempty"`
+}