Arrow Annotate Tool
How to set up the ArrowAnnotate tool:
// Init cornerstone tools
cornerstoneTools.init();
// Enable any elements, and display images
// ...
// Add our tool, and set it's mode
const ArrowAnnotateTool = cornerstoneTools.ArrowAnnotateTool;
cornerstoneTools.addTool(ArrowAnnotateTool)
cornerstoneTools.setToolActive('ArrowAnnotate', { mouseButtonMask: 1 })