Adding flexbox polyfill to IE11

Packages/ohif-compatibility/client/ie.js

@@ -10,6 +10,7 @@ if (navigator && /MSIE \d|Trident.*rv:/.test(navigator.userAgent)) {
 
     writeScript('svgxuse.min.js');
     writeScript('typedarray.js');
+    writeScript('flexibility.min.js');
 
     window.addEventListener('click', event => {
         if (!window.SVGElementInstance || !(event.target instanceof SVGElementInstance)) return;

Packages/ohif-compatibility/package.js

@@ -14,6 +14,7 @@ Package.onUse(function(api) {
     // Assets to be imported dynamically
     api.addAssets('public/js/svgxuse.min.js', 'client');
     api.addAssets('public/js/typedarray.js', 'client');
+    api.addAssets('public/js/flexibility.min.js', 'client');
 
     // Client imports
     api.addFiles('client/index.js', 'client');