Add initial Microsoft Teams support

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

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

@@ -0,0 +1,23 @@
+// Code generated by msgraph-generate.go DO NOT EDIT.
+
+package msgraph
+
+// AppRole undocumented
+type AppRole struct {
+	// Object is the base model of AppRole
+	Object
+	// AllowedMemberTypes undocumented
+	AllowedMemberTypes []string `json:"allowedMemberTypes,omitempty"`
+	// Description undocumented
+	Description *string `json:"description,omitempty"`
+	// DisplayName undocumented
+	DisplayName *string `json:"displayName,omitempty"`
+	// ID undocumented
+	ID *UUID `json:"id,omitempty"`
+	// IsEnabled undocumented
+	IsEnabled *bool `json:"isEnabled,omitempty"`
+	// Origin undocumented
+	Origin *string `json:"origin,omitempty"`
+	// Value undocumented
+	Value *string `json:"value,omitempty"`
+}