ContainerState enum 
State of the current Live Share sessions backing fluid container.
Fields
| added | The call to   | 
				
| alreadyExists | A container mapping for the current Live Share Session already exists and should be used when joining the sessions Fluid container.  | 
				
| conflict | The call to   | 
				
| notFound | A container mapping for the current Live Share session doesn't exist yet.  |