Provides a reconciler add-on for an `ITextViewer`. A reconciler provides generic synchronization support with the content of the document serving as the `ITextViewer`'s input. There is no explicit model of what is synchronized.

## Package Specification

`IReconciler` defines the concept of a reconciler. It collaborates with content type specific reconciling strategies (`IReconcilingStrategy`) which perform the synchronization for a given dirty region. The package contains a default implementation of `IReconciler` (`Reconciler`). `Reconciler` and `MonoReconciler` implements reconciling as a periodic background activity and folds co-located changes while being inactive.