[WIP] Lazy load projects

[purkhusid]

WHAT

🤖 Generated by Copilot at 9b54ec1

Added support for accessing and sorting compile items in fsproj files. Modified WorkspacePeek.fs to use a new type for fsproj data and added a function to Library.fs to get the full paths of compile items.

🤖 Generated by Copilot at 9b54ec1

Sing, O Muse, of the valiant F# coders, who dared to explore the fsproj files
And craft a new type to store their data, with skill and cunning like Hephaestus
They used the Microsoft.Build.Evaluation assembly, a mighty tool of Zeus
To get the full paths of compile items, and sort them by their order and use

📝🛠️🚀

WHY

This is WIP of trying to lazy load projects. See: ionide/ionide-vscode-fsharp#1957

HOW

🤖 Generated by Copilot at 9b54ec1

• Add FsprojData type to store fsproj path and compile items (link)
• Modify getInfo function to use getFsprojCompileItemPaths to get compile items for fsproj files (link)
• Modify peek function to sort and map fsproj files to FsprojData records and wrap them in Interesting.Directory case (link, link)
• Add getFsprojCompileItemPaths function to ProjectLoader module in Library.fs to load and evaluate fsproj files using System.Xml namespace and getCompileItems function (link, link)