Provides the base classes to implement a search result view part for searches with textual matches.

## Package Specification

`AbstractTextSearchResult` implements a `ISearchResult` and holds result entries of type `Match`. A match represents a range of text in a parent resource.

`AbstractTextSearchViewPage` implements a `ISearchResultPage` capable of showing an `AbstractTextSearchResult`. It uses `IEditorMatchAdapter`, `IFileMatchAdapter` to adapt matches to editor, resp. files.

Editors that don't use standard text annotation models can implement `ISearchEditorAccess` to allow textual searches to be shown.