v0.9.13

- 增加 FreeSql.Extensions.JsonMap 扩展包，实现快速将对象映射为json字符串的方法；
- 优化 表达式解析未实现的错误提醒，如 $""；

Extensions/FreeSql.Extensions.JsonMap/FreeSql.Extensions.JsonMap.csproj

@@ -0,0 +1,29 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+	<PropertyGroup>
+		<TargetFrameworks>netstandard2.0;net45</TargetFrameworks>
+		<Version>0.9.15</Version>
+		<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
+		<Authors>YeXiangQin</Authors>
+		<Description>FreeSql 扩展包，可实现实体类属性为对象时，以JSON形式映射存储.</Description>
+		<PackageProjectUrl>https://github.com/2881099/FreeSql</PackageProjectUrl>
+		<RepositoryUrl>https://github.com/2881099/FreeSql</RepositoryUrl>
+		<RepositoryType>git</RepositoryType>
+		<PackageLicenseExpression>MIT</PackageLicenseExpression>
+		<PackageTags>FreeSql;ORM</PackageTags>
+		<PackageId>$(AssemblyName)</PackageId>
+        <PackageIconUrl>https://github.com/2881099/FreeSql/blob/master/logo.png</PackageIconUrl>
+		<Title>$(AssemblyName)</Title>
+		<IsPackable>true</IsPackable>
+		<GenerateAssemblyInfo>true</GenerateAssemblyInfo>
+	</PropertyGroup>
+
+	<ItemGroup>
+	  <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
+	</ItemGroup>
+
+	<ItemGroup>
+	  <ProjectReference Include="..\..\FreeSql\FreeSql.csproj" />
+	</ItemGroup>
+
+</Project>