Add initial Microsoft Teams support

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

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

@@ -0,0 +1,25 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+import "time"
+
+// EmailAppUsageVersionsUserCounts undocumented
+type EmailAppUsageVersionsUserCounts struct {
+	// Entity is the base model of EmailAppUsageVersionsUserCounts
+	Entity
+	// ReportRefreshDate undocumented
+	ReportRefreshDate *time.Time `json:"reportRefreshDate,omitempty"`
+	// Outlook2016 undocumented
+	Outlook2016 *int `json:"outlook2016,omitempty"`
+	// Outlook2013 undocumented
+	Outlook2013 *int `json:"outlook2013,omitempty"`
+	// Outlook2010 undocumented
+	Outlook2010 *int `json:"outlook2010,omitempty"`
+	// Outlook2007 undocumented
+	Outlook2007 *int `json:"outlook2007,omitempty"`
+	// Undetermined undocumented
+	Undetermined *int `json:"undetermined,omitempty"`
+	// ReportPeriod undocumented
+	ReportPeriod *string `json:"reportPeriod,omitempty"`
+}