Various fixes for browser compatibility issues (#12740)

* Replace Math.log2 with ol/math.log2
* TypedArray.from() browser compatibility fallback
* listen for input and change events for range

examples/webgl-shaded-relief.js

@@ -67,10 +67,12 @@ controlIds.forEach(function (id) {
     variables[id] = Number(control.value);
   }
   updateValues();
-  control.addEventListener('input', () => {
+  const listener = function () {
     updateValues();
     shadedRelief.updateStyleVariables(variables);
-  });
+  };
+  control.addEventListener('input', listener);
+  control.addEventListener('change', listener);
 });
 
 const map = new Map({