Feature Request: Support Computer Units

[syepes]

It would be great to support the standard IT storage units, this would allow us to convert form one unit to another but to also do other operations like:

• 1 TiB to GiB → 1024 GiB
• 250 KiB * 7 day to GiB → 154.8 GiB

https://en.wikipedia.org/wiki/Units_of_information#Systematic_multiples

Looks like the underlying lib already has support for these units: https://mathjs.org/docs/datatypes/units.html