Add .NET 10 support

- Updated ModelingEvolution.HdrSplitControl.csproj to multi-target net9.0;net10.0

Author: Rafal Maciag

src/ModelingEvolution.HdrSplitControl/ModelingEvolution.HdrSplitControl.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Razor">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFrameworks>net9.0;net10.0</TargetFrameworks>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <RootNamespace>ModelingEvolution.HdrSplitControl</RootNamespace>