WIP
The Environment Variables namespace extension is working as expected now, but seems unstable on x86.
Fixed a couple of issues - the shell debugger allows navigation but there are problems opening the extension, I think it's the PIDL for the folder (relative rather than absolute perhaps)
minor improvements again, but still can't create a shell view on a child of the extension
Removed unneeded sample
commented out IServiceProvider impl
Updated test
More work on the proxy/impl
Fixed one or two more bugs
rebuild of NB
Fixed the issues in the server manager that meant we weren't running as x64
Minor tweaks, navigation to subfolders is still not working
More attempts to get the folder working
Cleaned up some of the TODOs
Merge branch 'd/SNEWorkInProgress' of github.com:dwmkerr/sharpshell into d/SNEWorkInProgress

Conflicts:
	SharpShell/SharpShell/SharpShell.csproj
	SharpShell/SharpShellNativeBridge/stdafx.h
Commented on interop code.
Fixed some todos, turned some into tasks