add Version property to IPlugin

Pilz.Plugins/IPlugin.cs

@@ -1,6 +1,10 @@
-namespace Pilz.Plugins;
+using Pilz.Extensions;
+using System.Reflection;
+
+namespace Pilz.Plugins;
 
 public interface IPlugin
 {
-    public string Name { get; }
+    string Name { get; }
+    AppVersion Version => GetType().Assembly.GetAppVersion();
 }

Pilz.Plugins/Pilz.Plugins.csproj

@@ -11,4 +11,8 @@
     <Version>2.1.10</Version>
   </PropertyGroup>
 
+  <ItemGroup>
+    <ProjectReference Include="..\Pilz\Pilz.csproj" />
+  </ItemGroup>
+
 </Project>