-> Files added

IPage.cs

@@ -0,0 +1,23 @@
+using System.Windows.Controls;
+
+namespace PTConverter.Plugin
+{
+    /// <summary>
+    /// Represent a Module-Page
+    /// </summary>
+    public interface IPage
+    {
+        /// <summary>
+        /// Instance of an Control(XAML-Page)
+        /// </summary>
+        UserControl GetPage();
+        /// <summary>
+        /// The Main Category
+        /// </summary>
+        string GetCategory();
+        /// <summary>
+        /// The Undercategory of an Main Category Page
+        /// </summary>
+        string GetUnderCategory();
+    }
+}

IPlugin.cs

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+using System.Collections.Generic;
+
+namespace PTConverter.Plugin
+{
+    /// <summary>
+    /// Describes an Plugin
+    /// </summary>
+    public interface IPlugin
+    {
+        /// <summary>
+        /// Author of the plugin 
+        /// </summary>
+        string Author { get; }
+        /// <summary>
+        /// Company of the Plugin
+        /// </summary>
+        string Company { get; }
+        /// <summary>
+        /// Name of the Plugin
+        /// </summary>
+        string PluginName { get; }
+        /// <summary>
+        /// Description of the Plugin
+        /// </summary>
+        string Description { get; }
+        /// <summary>
+        /// The Version of the Plugin
+        /// </summary>
+        string Version { get; }
+        /// <summary>
+        /// The Icon(Link) of the Plugin 
+        /// </summary>
+        string IconLink { get; }
+        /// <summary>
+        /// Registers all pages
+        /// </summary>
+        IEnumerable<IPage> RegisterPages {get;}
+    }
+}

obj/Debug/.NETFramework,Version=v4.7.2.AssemblyAttributes.cs

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+// <autogenerated />
+using System;
+using System.Reflection;
+[assembly: global::System.Runtime.Versioning.TargetFrameworkAttribute(".NETFramework,Version=v4.7.2", FrameworkDisplayName = ".NET Framework 4.7.2")]