Added PORT peripheral validation for AVR8 TDFs

build/scripts/TargetDescriptionFiles/ModuleInstance.php

@@ -2,6 +2,7 @@
 namespace Bloom\BuildScripts\TargetDescriptionFiles;
 
 require_once __DIR__ . "/RegisterGroup.php";
+require_once __DIR__ . "/Signal.php";
 
 class ModuleInstance
 {
@@ -9,4 +10,7 @@ class ModuleInstance
 
     /** @var RegisterGroup[] */
     public array $registerGroupsMappedByName = [];
+
+    /** @var Signal[]  */
+    public array $signals = [];
 }