Added strong name for MaybeSharp assembly

Author: lord-executor

src/MaybeSharp.snk

@@ -9,9 +9,11 @@
     <Company />
     <PackageDescription>See the project's Github page under https://github.com/lord-executor/MaybeSharp </PackageDescription>
     <Authors>Lukas Angerer</Authors>
-    <Version>1.3.0</Version>
+    <Version>1.3.1</Version>
     <AssemblyVersion>1.3.0.0</AssemblyVersion>
     <FileVersion>1.3.0.0</FileVersion>
+    <SignAssembly>true</SignAssembly>
+    <AssemblyOriginatorKeyFile>..\MaybeSharp.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
 
 </Project>