Implemented a wrapper for super easy use

Feistel.vcxproj.filters

@@ -24,6 +24,9 @@
     <ClCompile Include="GhettoCipher.cpp">
       <Filter>Quelldateien</Filter>
     </ClCompile>
+    <ClCompile Include="GhettoCipherWrapper.cpp">
+      <Filter>Quelldateien</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="Feistel.h">
@@ -50,5 +53,8 @@
     <ClInclude Include="GhettoCipher.h">
       <Filter>Headerdateien</Filter>
     </ClInclude>
+    <ClInclude Include="GhettoCipherWrapper.h">
+      <Filter>Headerdateien</Filter>
+    </ClInclude>
   </ItemGroup>
 </Project>