Initial code for a public distribution of the Visual Studio Output Window Services (fixes #1)
Add the Output Window Service extension installation folder to the binding path

Consumers of the service no longer rely on [ProvideBindingPath], and no longer need to include the interfaces DLL alongside their extensions. An install.ps1 was added to the interfaces NuGet package to set CopyLocal=false when the package is installed.
Add initial documentation for the Output Window service
Simplified the manner in which ProvideBindingPath is used for the Output Window service
Updated API documentation and examples for the Output Window Service
Merge pull request #3 from sharwell/output-window

Output Window Service