Merge pull request #6 from Meloong-Git/copilot/add-polysharp-remove-legacy-implementations

Replace `Nullable` with `PolySharp`

Shared/MeloongCore.csproj

@@ -15,7 +15,7 @@
 	</PropertyGroup>
 
 	<ItemGroup>
-		<PackageReference Include="Nullable" Version="1.3.1">
+		<PackageReference Include="PolySharp" Version="1.15.0">
 			<PrivateAssets>all</PrivateAssets>
 			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
 		</PackageReference>

Tests/MeloongCore.Tests.csproj

@@ -30,7 +30,7 @@
 			<PrivateAssets>all</PrivateAssets>
 			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
 		</PackageReference>
-		<PackageReference Include="Nullable" Version="1.3.1">
+		<PackageReference Include="PolySharp" Version="1.15.0">
 			<PrivateAssets>all</PrivateAssets>
 			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
 		</PackageReference>

Wpf/MeloongCore.Wpf.csproj

@@ -15,7 +15,7 @@
 	</PropertyGroup>
 
 	<ItemGroup>
-		<PackageReference Include="Nullable" Version="1.3.1">
+		<PackageReference Include="PolySharp" Version="1.15.0">
 			<PrivateAssets>all</PrivateAssets>
 			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
 		</PackageReference>