Add initial Microsoft Teams support

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

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

@@ -0,0 +1,19 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+// ExtensionProperty undocumented
+type ExtensionProperty struct {
+	// DirectoryObject is the base model of ExtensionProperty
+	DirectoryObject
+	// AppDisplayName undocumented
+	AppDisplayName *string `json:"appDisplayName,omitempty"`
+	// Name undocumented
+	Name *string `json:"name,omitempty"`
+	// DataType undocumented
+	DataType *string `json:"dataType,omitempty"`
+	// IsSyncedFromOnPremises undocumented
+	IsSyncedFromOnPremises *bool `json:"isSyncedFromOnPremises,omitempty"`
+	// TargetObjects undocumented
+	TargetObjects []string `json:"targetObjects,omitempty"`
+}