ZQ Wang

This will support local file system as install source, useful for local private bucket that uses a simple file server to install tools from. Closes #4265

Cannot compile queries using nuget package Microsoft.CodeAnalysis 2.0.0

8

To repro, create a new query and add nuget package Microsoft.CodeAnalysis which is 2.0.0, add following code: var workspace = new AdhocWorkspace(); Add missing namespace imports and ensure it works...