LT-123: Add missing files

-Replace mathUtils.js functions with existed functions in cornerstoneMath.js
-Add rectToPoints, doesIntersect, getIntersectionRect methods in cornerstoneMath.rect,
-Add intersectLine method in cornerstoneMath.lineSegment

LesionTracker/client/components/viewer.js

@@ -318,7 +318,6 @@ Template.viewer.onRendered(function() {
         var viewports = $(".imageViewerViewport");
         var element =  viewports.get(activeViewportIndex);
         var enabledElement = cornerstone.getEnabledElement(element);
-        console.log(enabledElement);
         // Check value of rowPixelSpacing & columnPixelSpacing to define as unavailable
         if (!enabledElement || !enabledElement.image || !enabledElement.image.rowPixelSpacing || !enabledElement.image.columnPixelSpacing) {
             // Disable Lesion Buttons