Add initial Microsoft Teams support

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

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

@@ -0,0 +1,25 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+// AttributeFlowBehavior undocumented
+type AttributeFlowBehavior int
+
+const (
+	// AttributeFlowBehaviorVFlowWhenChanged undocumented
+	AttributeFlowBehaviorVFlowWhenChanged AttributeFlowBehavior = 0
+	// AttributeFlowBehaviorVFlowAlways undocumented
+	AttributeFlowBehaviorVFlowAlways AttributeFlowBehavior = 1
+)
+
+// AttributeFlowBehaviorPFlowWhenChanged returns a pointer to AttributeFlowBehaviorVFlowWhenChanged
+func AttributeFlowBehaviorPFlowWhenChanged() *AttributeFlowBehavior {
+	v := AttributeFlowBehaviorVFlowWhenChanged
+	return &v
+}
+
+// AttributeFlowBehaviorPFlowAlways returns a pointer to AttributeFlowBehaviorVFlowAlways
+func AttributeFlowBehaviorPFlowAlways() *AttributeFlowBehavior {
+	v := AttributeFlowBehaviorVFlowAlways
+	return &v
+}