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