Add initial Microsoft Teams support

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

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

@@ -0,0 +1,13 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+// BookingWorkHours undocumented
+type BookingWorkHours struct {
+	// Object is the base model of BookingWorkHours
+	Object
+	// Day The day of the week represented by this instance.
+	Day *DayOfWeek `json:"day,omitempty"`
+	// TimeSlots A list of start/end times during a day.
+	TimeSlots []BookingWorkTimeSlot `json:"timeSlots,omitempty"`
+}