Added redraw re-export from the highlightRenderer

[oleksandr-danylchenko]

Issue - #103

Changes Made

1. redraw method to the TextAnnotator definition
2. Added direct re-exports for the highlightRenderer methods

(Soomo Staged)

[oleksandr-danylchenko]

Hello, @rsimon 👋🏻
I discovered a new useful case for exposing the redraw. It's needed for annotations made on scrollable tables. A consumer can add a scroll listener and, in the handler, run the:

const handleScroll = () => {
	r.state.store.recalculatePositions();
	r.redraw(true);
};

Would it be possible to make this change a merge candidate?