There are lots of icons from your list that are already inside, and that goes for commonly used software, like Photoshop, Office and such, but for less used ones, well we will add them later.
Also, when the editor gets implemented, users will be able to create icons and share them, so our job should be easier
One man can make like 10 a day, and that is if he is concentrated, without distractions. We have around 1000 icons now. And we really hope that the community will help us with this..