Giving UI elements with numbers the ability to use math operations

[CookieLynx]

Is your feature request related to a problem? Please describe.
Not related to a problem, just a QOL suggestion with being able to use math operations on UI elements that use numbers.

Describe the solution you'd like
Unity has a very simple system that could work well here, see screenshots below. It works with all basic math operations (+, -, /, *) it also works with order of operations but that's not required.

Original values

Adding 30

After pressing enter or clicking off of value

This would be very useful for doing simple math in game quickly without having to alt tab out to a calculator.

[segabl]

This looks useful and not too hard to implement, I may give this a try

[segabl]

you can try out this feature on the https://github.com/simon-wh/PAYDAY-2-BeardLib/tree/expression-eval branch