How to rebind named binding?

[akosyakov]

See https://github.com/theia-ide/theia/pull/1664/files#r182040835

[remojansen]

@akosyakov seems like we need to implement rebindNamed and rebindTagged()?

[tonyhallett]

See #447 for a solution

[tonyhallett]

I would happily do a pull request.
Should the container have the method ?
Should the binding syntax be extended ?
container.bind(IThing).to(Thing) returns interface something like

interface UnbindRebind<T>{
unbind():void
rebind<T>:interfaces.BindingToSyntax<T>
rebindValue(newValue:any):void//or rebindTo/rebindToSelf
}

[tonyhallett]

I have opted for extending the fluent syntax. I should hopefully have a pull request tomorrow.