chore: update license details and enforce code style settings

Author: snovak7

Directory.Build.props

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <Project>
     <PropertyGroup>
         <RepositoryType>git</RepositoryType>

Directory.Packages.props

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <Project>
     <ItemGroup>
         <PackageVersion Include="Escendit.Tools.Branding" Version="1.2.0"/>

nuget.config

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <packageSources>
         <clear />

src/Escendit.Tools.CodeAnalysis.NetAnalyzers/Escendit.Tools.CodeAnalysis.NetAnalyzers.csproj

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
         <DevelopmentDependency>true</DevelopmentDependency>

src/Escendit.Tools.CodeAnalysis.NetAnalyzers/Escendit.Tools.CodeAnalysis.NetAnalyzers.globalconfig

@@ -4,10 +4,11 @@ global_level = -1
 csharp_style_namespace_declarations = file_scoped:error
 csharp_using_directive_placement = inside_namespace:error
 
-file_header_template = Copyright (c) Escendit Ltd. All Rights Reserved.\nLicensed under the MIT. See LICENSE.txt file in the solution root for full license information.
+file_header_template = Licensed to the Escendit GmbH under one or more agreements.\nThe Escendit GmbH licenses this file to you under the Apache License 2.0.
 
 dotnet_diagnostic.IDE0065.severity = error
 dotnet_diagnostic.IDE0073.severity = error
+dotnet_diagnostic.IDE0160.severity = none
 dotnet_diagnostic.IDE0161.severity = error
 
 dotnet_diagnostic.CA1000.severity = warning

src/Escendit.Tools.CodeAnalysis.NetAnalyzers/Escendit.Tools.CodeAnalysis.NetAnalyzers.props

@@ -1,7 +1,7 @@
-<?xml version="1.0" encoding="utf-8"?>
 <Project>
     <PropertyGroup>
         <EnableNETAnalyzers>true</EnableNETAnalyzers>
+        <EnforceCodeStyleInBuild>true</EnforceCodeStyleInBuild>
         <GenerateDocumentationFile>True</GenerateDocumentationFile>
         <CodeAnalysisRuleSetLocation>$(NuGetPackageRoot)</CodeAnalysisRuleSetLocation>
     </PropertyGroup>

src/Escendit.Tools.CodeAnalysis.NetAnalyzers/Escendit.Tools.CodeAnalysis.NetAnalyzers.targets

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <Project>
     <ItemGroup>
         <EditorConfigFiles Include="$([MSBuild]::NormalizePath('$(MSBuildThisFileDirectory)\..\Escendit.Tools.CodeAnalysis.NetAnalyzers.globalconfig'))">