Add initial Microsoft Teams support

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

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

@@ -0,0 +1,15 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+// SensitivityPolicySettings undocumented
+type SensitivityPolicySettings struct {
+	// Entity is the base model of SensitivityPolicySettings
+	Entity
+	// IsMandatory undocumented
+	IsMandatory *bool `json:"isMandatory,omitempty"`
+	// HelpWebURL undocumented
+	HelpWebURL *string `json:"helpWebUrl,omitempty"`
+	// DowngradeSensitivityRequiresJustification undocumented
+	DowngradeSensitivityRequiresJustification *bool `json:"downgradeSensitivityRequiresJustification,omitempty"`
+}