Add Version, PackageTags, and Copyright for NuGet package (#115)

- Set Version to 0.1.0 in Directory.Build.props
- Add Copyright in Directory.Build.props
- Add PackageTags (sorting, sorting-network, source-generator, simd, performance)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: jonathanpeppers

Directory.Build.props

@@ -4,5 +4,7 @@
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <LangVersion>latest</LangVersion>
+    <Version>0.1.0</Version>
+    <Copyright>Copyright (c) Jonathan Peppers</Copyright>
   </PropertyGroup>
 </Project>

SortingNetworks/SortingNetworks.csproj

@@ -6,6 +6,7 @@
     <Description>Source generator for sorting-network-based sorting of small arrays, including depth-13 networks for 27 and 28 channels from arXiv:2511.04107.</Description>
     <Authors>Jonathan Peppers</Authors>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
+    <PackageTags>sorting sorting-network source-generator simd performance</PackageTags>
     <PackageProjectUrl>https://github.com/jonathanpeppers/SortingNetworks</PackageProjectUrl>
     <RepositoryUrl>https://github.com/jonathanpeppers/SortingNetworks</RepositoryUrl>
     <PackageReadmeFile>README.md</PackageReadmeFile>