Re-tweak build paths; remove from csproj. Use TargetFrameworks even for single targets as it plays well with CustomSuffix. Global LangVersion=latest.

Author: rstarkov

RT.CommandLine/RT.CommandLine.csproj

@@ -1,9 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
-    <OutputPath>..\Builds\$(Configuration)-$(TargetFramework)$(RuntimeIdentifier)\</OutputPath>
-    <IntermediateOutputPath>$(BaseIntermediateOutputPath)\$(Configuration)-$(TargetFramework)$(RuntimeIdentifier)\</IntermediateOutputPath>
+    <TargetFrameworks>netstandard2.0</TargetFrameworks>
     <DocumentationFile>$(OutputPath)\$(AssemblyName).xml</DocumentationFile>
 
     <Version>1.0.0.9999</Version>

Tests/RT.CommandLine.Tests/RT.CommandLine.Tests.csproj

@@ -1,9 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
-    <OutputPath>..\..\Builds\$(Configuration)-$(TargetFramework)$(RuntimeIdentifier)\</OutputPath>
-    <IntermediateOutputPath>$(BaseIntermediateOutputPath)\$(Configuration)-$(TargetFramework)$(RuntimeIdentifier)\</IntermediateOutputPath>
+    <TargetFrameworks>net7.0</TargetFrameworks>
 
     <IsPackable>false</IsPackable>
   </PropertyGroup>