Per editor Connect support v0.1

- Basic plumbing to support connections for a URI rather than global connections. Typical use case is editor requests to connect, but this isn't the only possible use
- Tests pass but need updating to cover new functionality, and re-enable AutoCompleteService test once there is a ServiceDiscovery component that registers and returns services. This is necessary as .Instance won't allow for dependency injection and proper testing.

nuget.config

@@ -9,7 +9,7 @@
     
     <!-- Add the SSMS repo for private requirements -->
     <add key="SQLDS - SSMS" value="http://SQLISNuget/DS-SSMS/nuget/" />
-     
+    <add key="CrossPlat" value="W:/" />
   </packageSources>
 
 </configuration>