24x24 viewbox for all Icons
Can you please make all the icons in 24x24 viewbox like in Material Icons so it would be easy for the designers to use it properly in design mockups. Example is shown in the image.
![boxicons](https://user-images.githubusercontent.com/7503466/59358313-f25fbb80-8d49-11e9-875d-47526f02ab3a.PNG)
