Adds drinking functionality to chemical bottles.

Created by: Skullyton

Fixes #10614 (closed)

As mentioned above, this basically copypastes the drinking mechanic from beer glasses and such, and applies it to those chemical bottles you can get from chem-masters.

However, this kinda sacrificed being able to cap the bottle, so I've also converted capping to a general verb that beakers and such use, so you can just right click the bottle and press 'toggle seal' from the verb list.

Additionally, the amount you consume from a chem bottle is dependent on its transfer amount, so you can potentially just down it all in one. However, attempting to apply it to another person simply splashes them like before, so you can't just run around force feeding people 30u hyperzine/chloral bottles.