C#: Update the Roslyn, MsBuild and Binlog extractor dependencies.

Author: michaelnebel

csharp/paket.dependencies

@@ -4,14 +4,14 @@ source https://api.nuget.org/v3/index.json
 # behave like nuget in choosing transitive dependency versions
 strategy: max
 
-nuget Basic.CompilerLog.Util 0.9.21
+nuget Basic.CompilerLog.Util 0.9.25
 nuget Mono.Posix.NETStandard
 nuget Newtonsoft.Json
 nuget NuGet.Versioning
 nuget xunit
 nuget xunit.runner.visualstudio
 nuget xunit.runner.utility
 nuget Microsoft.NET.Test.Sdk
-nuget Microsoft.CodeAnalysis.CSharp 4.14.0
-nuget Microsoft.CodeAnalysis 4.14.0
-nuget Microsoft.Build 17.14.28
+nuget Microsoft.CodeAnalysis.CSharp 5.0.0
+nuget Microsoft.CodeAnalysis 5.0.0
+nuget Microsoft.Build 18.0.2