split IEchonetLiteHandler out to the new package Smdn.Net.EchonetLite…

….Transport

src/Smdn.Net.EchonetLite.Transport/Smdn.Net.EchonetLite.Transport.csproj

@@ -0,0 +1,41 @@
+<!--
+SPDX-FileCopyrightText: 2024 smdn <smdn@smdn.jp>
+SPDX-License-Identifier: MIT
+-->
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFrameworks>netstandard2.1;net6.0;net8.0</TargetFrameworks>
+    <VersionPrefix>1.0.0</VersionPrefix>
+    <VersionSuffix></VersionSuffix>
+    <Nullable>enable</Nullable>
+    <GenerateDocumentationFile>true</GenerateDocumentationFile>
+    <EnforceCodeStyleInBuild>true</EnforceCodeStyleInBuild>
+    <NoWarn>CS1591;$(NoWarn)</NoWarn> <!-- CS1591: Missing XML comment for publicly visible type or member 'Type_or_Member' -->
+    <RootNamespace/> <!-- empty the root namespace so that the namespace is determined only by the directory name, for code style rule IDE0030 -->
+  </PropertyGroup>
+
+  <PropertyGroup Label="assembly attributes">
+    <Description>
+<![CDATA[Provides the APIs based on the specifications described in the "ECHONET Lite SPECIFICATION II ECHONET Lite Communication Middleware Specifications". Including APIs such as `IEchonetLiteHandler`, which is the interface for implementing the communication endpoint to the "Lower Communication Layers".
+
+「ECHONET Lite SPECIFICATION 第２部 ECHONET Lite 通信ミドルウェア仕様」に記載されている「下位通信層」との通信エンドポイントを実装するための抽象インターフェース`IEchonetLiteHandler`などのAPIを提供します。]]>
+    </Description>
+  </PropertyGroup>
+
+  <PropertyGroup Label="package properties">
+    <PackageTags>transport;connection;$(PackageTags)</PackageTags>
+    <GenerateNupkgReadmeFileDependsOnTargets>$(GenerateNupkgReadmeFileDependsOnTargets);GenerateReadmeFileContent</GenerateNupkgReadmeFileDependsOnTargets>
+  </PropertyGroup>
+
+  <Target Name="GenerateReadmeFileContent">
+    <PropertyGroup>
+      <PackageReadmeFileContent><![CDATA[# $(PackageId) $(PackageVersion)
+$(Description)
+
+## Contributing
+This project welcomes contributions, feedbacks and suggestions. You can contribute to this project by submitting [Issues]($(RepositoryUrl)/issues/new/choose) or [Pull Requests]($(RepositoryUrl)/pulls/) on the [GitHub repository]($(RepositoryUrl)).
+]]></PackageReadmeFileContent>
+    </PropertyGroup>
+  </Target>
+</Project>

src/Smdn.Net.EchonetLite/Smdn.Net.EchonetLite.csproj

@@ -18,9 +18,9 @@ SPDX-License-Identifier: MIT
 
   <PropertyGroup Label="assembly attributes">
     <Description>
-<![CDATA[Provides the implementation based on the specifications described in the "ECHONET Lite SPECIFICATION II ECHONET Lite Communication Middleware Specifications". Including APIs such as `EchonetClient`, which is an implementation corresponding to the "Communication Middleware" in the specification, and `IEchonetLiteHandler`, which is the interface for implementing the communication endpoint to the "Lower Communication Layers".
+<![CDATA[Provides the implementation based on the specifications described in the "ECHONET Lite SPECIFICATION II ECHONET Lite Communication Middleware Specifications". Including APIs such as `EchonetClient`, which is an implementation corresponding to the "Communication Middleware" in the specification.
 
-「ECHONET Lite SPECIFICATION 第２部 ECHONET Lite 通信ミドルウェア仕様」に記載されている仕様に基づく実装を提供します。　同仕様書における「通信ミドルウェア」に相当する`EchonetClient`、および「下位通信層」との通信エンドポイントを実装するためのインターフェース`IEchonetLiteHandler`などのAPIを提供します。]]>
+「ECHONET Lite SPECIFICATION 第２部 ECHONET Lite 通信ミドルウェア仕様」に記載されている仕様に基づく実装を提供します。　同仕様書における「通信ミドルウェア」に相当する`EchonetClient`などのAPIを提供します。]]>
     </Description>
   </PropertyGroup>
 
@@ -34,6 +34,7 @@ SPDX-License-Identifier: MIT
 
   <ItemGroup>
     <ProjectOrPackageReference ReferencePackageVersion="1.0.0" Include="..\Smdn.Net.EchonetLite.Appendix\Smdn.Net.EchonetLite.Appendix.csproj" />
+    <ProjectOrPackageReference ReferencePackageVersion="1.0.0" Include="..\Smdn.Net.EchonetLite.Transport\Smdn.Net.EchonetLite.Transport.csproj" />
   </ItemGroup>
 
   <Target Name="GenerateReadmeFileContent">