Assembly property values set from within response files cannot end with quote marks

[cgranade]

Describe the bug

When using the --assembly-properties command line argument to qsc.dll from within a response file, assembly property values cannot end with a double-quote character ("").

To Reproduce

Steps to reproduce the behavior:

1. In a qsc.rsp file, add an argument to the --assembly-properties option that ends with a double-quote character. E.g.:

   --assembly-properties ProcessorArchitecture:Unspecified QsharpOutputType:QsharpLibrary ExecutionTarget:Any DocsPackageId:Microsoft.Quantum.Standard DocsOutputPath:"C:\Users\cgran\source\repos\microsoft\quantumlibraries\Standard\src\docs"
   

2. Invoke qsc.dll with the given response file.

Expected behavior

The DocsOutputPath assembly property to be set to "C:\Users\cgran\source\repos\microsoft\quantumlibraries\Standard\src\docs". Due to https://github.com/microsoft/qsharp-compiler/blob/feature/docgen/src/QsCompiler/CommandLineTool/Commands/Build.cs#L136, the closing " is stripped by the call to Trim.

System information

• Beta package version: Microsoft.Quantum.Sdk/0.12.201016171-beta

[cgranade]

As a side note, it also appears that assembly properties cannot contain a colon due to the call to Split(":") in Options.cs at L93.