Add initial Microsoft Teams support

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

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

@@ -0,0 +1,15 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+// PersonOrGroupColumn undocumented
+type PersonOrGroupColumn struct {
+	// Object is the base model of PersonOrGroupColumn
+	Object
+	// AllowMultipleSelection undocumented
+	AllowMultipleSelection *bool `json:"allowMultipleSelection,omitempty"`
+	// ChooseFromType undocumented
+	ChooseFromType *string `json:"chooseFromType,omitempty"`
+	// DisplayAs undocumented
+	DisplayAs *string `json:"displayAs,omitempty"`
+}