Add initial Microsoft Teams support

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

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

@@ -0,0 +1,15 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+// ItemAnalytics undocumented
+type ItemAnalytics struct {
+	// Entity is the base model of ItemAnalytics
+	Entity
+	// ItemActivityStats undocumented
+	ItemActivityStats []ItemActivityStat `json:"itemActivityStats,omitempty"`
+	// AllTime undocumented
+	AllTime *ItemActivityStat `json:"allTime,omitempty"`
+	// LastSevenDays undocumented
+	LastSevenDays *ItemActivityStat `json:"lastSevenDays,omitempty"`
+}