Update to .NET 10.0, C# 14.0, and current NuGet packages (#174)

Author: Copilot

Directory.Build.props

@@ -16,7 +16,7 @@
 	<PackageReadmeFile>README.md</PackageReadmeFile>
   </PropertyGroup>
   <PropertyGroup>
-  	<LangVersion>12.0</LangVersion>
+  	<LangVersion>14.0</LangVersion>
   	<ImplicitUsings>true</ImplicitUsings>
   	<Nullable>enable</Nullable>
   </PropertyGroup>

Directory.Packages.props

@@ -4,7 +4,7 @@
     <CentralPackageTransitivePinningEnabled>false</CentralPackageTransitivePinningEnabled>
   </PropertyGroup>
   <ItemGroup>
-    <PackageVersion Include="Microsoft.CodeAnalysis.NetAnalyzers" Version="10.0.100" />
+    <PackageVersion Include="Microsoft.CodeAnalysis.NetAnalyzers" Version="10.0.101" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
     <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="8.0.0" />
     <PackageVersion Include="Moq" Version="4.20.72" />

IntelliTect.Multitool.Tests/IntelliTect.Multitool.Tests.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 	<Import Project="../IntelliTect.Multitool/Build/IntelliTect.Multitool.targets" />
   <PropertyGroup>
-    <TargetFrameworks>net9.0</TargetFrameworks>
+    <TargetFrameworks>net10.0</TargetFrameworks>
 
     <IsPackable>false</IsPackable>
   </PropertyGroup>

IntelliTect.Multitool.sln

@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "9.0.100",
+    "version": "10.0.101",
     "rollForward": "minor",
     "allowPrerelease": false
   }