Revert "IsPackable set via Directory.Build.props"

This reverts commit 5b8213f.

Author: gfoidl

Directory.Build.props

@@ -18,7 +18,6 @@
     </PropertyGroup>
 
     <PropertyGroup Condition="'$(IsTestProject)' != 'true' AND '$(IsBenchmarkProject)' != 'true'">
-        <IsPackable>true</IsPackable>
         <GenerateDocumentationFile Condition="'$(Configuration)' == 'Release'">true</GenerateDocumentationFile>
     </PropertyGroup>
 </Project>

src/MyCSharp.HttpUserAgentParser.AspNetCore/MyCSharp.HttpUserAgentParser.AspNetCore.csproj

@@ -4,6 +4,7 @@
         <Product>HTTP User Agent Parser Extensions for ASP.NET Core</Product>
         <Description>HTTP User Agent Parser Extensions for ASP.NET Core</Description>
         <TargetFramework>net5.0</TargetFramework>
+        <IsPackable>true</IsPackable>
     </PropertyGroup>
 
     <ItemGroup>

src/MyCSharp.HttpUserAgentParser.MemoryCache/MyCSharp.HttpUserAgentParser.MemoryCache.csproj

@@ -4,6 +4,7 @@
         <Product>HTTP User Agent Parser Extensions for IMemoryCache</Product>
         <Description>HTTP User Agent Parser Extensions for IMemoryCache</Description>
         <TargetFramework>netstandard2.1</TargetFramework>
+        <IsPackable>true</IsPackable>
     </PropertyGroup>
 
     <ItemGroup>

src/MyCSharp.HttpUserAgentParser/MyCSharp.HttpUserAgentParser.csproj

@@ -4,6 +4,7 @@
         <Product>HTTP User Agent Parser</Product>
         <Description>Parses user agents for Browser, Platform and Bots.</Description>
         <TargetFramework>netstandard2.1</TargetFramework>
+        <IsPackable>true</IsPackable>
     </PropertyGroup>
 
     <ItemGroup>