Replaced WorkspaceFileSystemWrapper with Get-Content and Get-ChildItem

[dkattan]

PR Summary

Removes artificial Uri schema restriction, provides a mechanism for language clients to specify URIs that direct to PSProviders

PR Context

[dkattan]

@andyleejordan Curious your thoughts on this. It ended up being heavier-handed than I wanted with all the async changes, but I'm wondering if that would be desirable if I split it into a separate MR? I know @SeeminglyScience doesn't want me changing the public interfaces, but they likely should've been Task<> from the start, async or not.

[SeeminglyScience]

I know @SeeminglyScience doesn't want me changing the public interfaces, but they likely should've been Task<> from the start, async or not.

Can you talk through what you're trying to solve? When you make a synchronous method return Task<> all you're really doing is requiring wrapper object be created that will be immediately discarded. It doesn't change the behavior at all if that's the assumption.