Update and publish frontends for -preview1

DecompilerNuGetDemos.workbook

@@ -6,7 +6,7 @@ platforms:
 - DotNetCore
 packages:
 - id: ICSharpCode.Decompiler
-  version: 5.0.0.5124
+  version: 6.0.0.5420-preview1
 ---
 
 Setup: load the references required to work with the decompiler

ICSharpCode.Decompiler.Console/ICSharpCode.Decompiler.Console.csproj

@@ -7,7 +7,7 @@
     <PackAsTool>true</PackAsTool>
     <AssemblyName>ilspycmd</AssemblyName>
     <ToolCommandName>ilspycmd</ToolCommandName>
-    <Version>5.0.0.5124</Version>
+    <Version>6.0.0.5420-preview1</Version>
     <Description>Command-line decompiler using the ILSpy decompilation engine</Description>
     <Copyright>Copyright 2011-2019 AlphaSierraPapa</Copyright>
     <PackageProjectUrl>https://github.com/icsharpcode/ILSpy/</PackageProjectUrl>
@@ -15,8 +15,8 @@
 	<PackageIcon>ILSpyCmdNuGetPackageIcon.png</PackageIcon>
     <RepositoryUrl>https://github.com/icsharpcode/ILSpy/</RepositoryUrl>
     <Company />
-    <AssemblyVersion>5.0.0.0</AssemblyVersion>
-    <FileVersion>5.0.0.0</FileVersion>
+    <AssemblyVersion>6.0.0.0</AssemblyVersion>
+    <FileVersion>6.0.0.0</FileVersion>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <Authors>ILSpy Team</Authors>
   </PropertyGroup>
@@ -35,7 +35,7 @@
   </ItemGroup>
 
   <ItemGroup Condition="'$(Configuration)' == 'Release'">
-    <PackageReference Include="ICSharpCode.Decompiler" Version="5.0.0.5124" />
+    <PackageReference Include="ICSharpCode.Decompiler" Version="6.0.0.5420-preview1" />
   </ItemGroup>
 
   <ItemGroup>

ICSharpCode.Decompiler.PowerShell/ICSharpCode.Decompiler.PowerShell.csproj

@@ -8,7 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="PowerShellStandard.Library" Version="5.1.0" />
-    <PackageReference Include="ICSharpCode.Decompiler" Version="5.0.0.5124" />
+    <PackageReference Include="ICSharpCode.Decompiler" Version="6.0.0.5420-preview1" />
   </ItemGroup>
 
 </Project>