Request hex conversion

[unnawut]

Slick UI! As a dev, I often work with hex numbers. It would save me a lot of time doing hex conversions in the app.

Here's a suggestion:

0xabcd              |   43981
43981 to hex        |  0xabcd

[aitc-h]

Base conversion would be one of the most used features for me. Including binary, octal, denary and hex would satisfy almost every dev out there.

[unnawut]

So I've started to work on this one myself but stumbled due to the missing conversions addressed in #41. Will continue on this once I get some feedback on that PR.

[sarthology]

@unnawut Great Suggestion. Also extremely sorry for the delay. But now we will be working on this more actively.