Make classes in ol/ available as named exports from ol

src/ol/pointer/PointerEventHandler.js

@@ -31,7 +31,7 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-import {inherits} from '../index.js';
+import {inherits} from '../util.js';
 import {listen, unlisten} from '../events.js';
 import EventTarget from '../events/EventTarget.js';
 import {POINTER, MSPOINTER, TOUCH} from '../has.js';