Bump package version to 0.3.1

Author: ncguilbeault

Directory.Build.props

@@ -8,7 +8,7 @@
         <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
         <UseArtifactsOutput>true</UseArtifactsOutput>
         <LangVersion>12</LangVersion>
-        <PackageVersion>0.3.0</PackageVersion>
+        <PackageVersion>0.3.1</PackageVersion>
     </PropertyGroup>
     <ItemGroup>
         <None Include="$(SolutionDir)/LICENSE.txt" Pack="true" PackagePath="" />