Add support for public and internal ProxyClass (#58)

* x

* fx

* .

src/ProxyInterfaceSourceGenerator/FileGenerators/ProxyClassesGenerator.cs

@@ -5,6 +5,7 @@ using ProxyInterfaceSourceGenerator.Builders;
 using ProxyInterfaceSourceGenerator.Enums;
 using ProxyInterfaceSourceGenerator.Extensions;
 using ProxyInterfaceSourceGenerator.Models;
+using ProxyInterfaceSourceGenerator.Types;
 using ProxyInterfaceSourceGenerator.Utils;
 
 namespace ProxyInterfaceSourceGenerator.FileGenerators;
@@ -88,6 +89,8 @@ internal partial class ProxyClassesGenerator : BaseGenerator, IFilesGenerator
 
         var (namespaceStart, namespaceEnd) = NamespaceBuilder.Build(pd.Namespace);
 
+        var accessibility = pd.Accessibility == ProxyClassAccessibility.Internal ? "internal" : "public";
+
         return $@"//----------------------------------------------------------------------------------------
 // <auto-generated>
 //     This code was generated by https://github.com/StefH/ProxyInterfaceSourceGenerator.
@@ -101,7 +104,7 @@ internal partial class ProxyClassesGenerator : BaseGenerator, IFilesGenerator
 using System;
 
 {namespaceStart}
-    public {@abstract}partial class {className} : {extends}{interfaceName}
+    {accessibility} {@abstract}partial class {className} : {extends}{interfaceName}
     {{
         public {@new}{targetClassSymbol.Symbol} _Instance {{ get; }}
         {instanceBaseDefinition}