Add initial Microsoft Teams support

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

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

@@ -0,0 +1,57 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+// AlertSeverity undocumented
+type AlertSeverity int
+
+const (
+	// AlertSeverityVUnknown undocumented
+	AlertSeverityVUnknown AlertSeverity = 0
+	// AlertSeverityVInformational undocumented
+	AlertSeverityVInformational AlertSeverity = 1
+	// AlertSeverityVLow undocumented
+	AlertSeverityVLow AlertSeverity = 2
+	// AlertSeverityVMedium undocumented
+	AlertSeverityVMedium AlertSeverity = 3
+	// AlertSeverityVHigh undocumented
+	AlertSeverityVHigh AlertSeverity = 4
+	// AlertSeverityVUnknownFutureValue undocumented
+	AlertSeverityVUnknownFutureValue AlertSeverity = 127
+)
+
+// AlertSeverityPUnknown returns a pointer to AlertSeverityVUnknown
+func AlertSeverityPUnknown() *AlertSeverity {
+	v := AlertSeverityVUnknown
+	return &v
+}
+
+// AlertSeverityPInformational returns a pointer to AlertSeverityVInformational
+func AlertSeverityPInformational() *AlertSeverity {
+	v := AlertSeverityVInformational
+	return &v
+}
+
+// AlertSeverityPLow returns a pointer to AlertSeverityVLow
+func AlertSeverityPLow() *AlertSeverity {
+	v := AlertSeverityVLow
+	return &v
+}
+
+// AlertSeverityPMedium returns a pointer to AlertSeverityVMedium
+func AlertSeverityPMedium() *AlertSeverity {
+	v := AlertSeverityVMedium
+	return &v
+}
+
+// AlertSeverityPHigh returns a pointer to AlertSeverityVHigh
+func AlertSeverityPHigh() *AlertSeverity {
+	v := AlertSeverityVHigh
+	return &v
+}
+
+// AlertSeverityPUnknownFutureValue returns a pointer to AlertSeverityVUnknownFutureValue
+func AlertSeverityPUnknownFutureValue() *AlertSeverity {
+	v := AlertSeverityVUnknownFutureValue
+	return &v
+}