[PT Run] Calculate numbers in binary and hexadecimal

[dnlmlr]

Summary of the new feature/enhancement

PT Run is already my goto way for doing small calculations. However I quite often need to do calculations, as well as conversions with different positional systems (mainly hex and binary).
It would be great if the built in calculator would support hex numbers by using the 0xHH notations and binary numbers by using the 0bXX notation. The result could be presented in the same system that is used in the calculation. If the calculation is mixing systems (for example hex and decimal), the result might default to decimal instead.
A conversion could also be implemented by using a notation similar to python-like casts: hex(some_numer), bin(some_number), dec(some_number).

Some possible calculation examples using the proposed system:
0xff + 0b100000000 -> 511
hex(0xff + 0b100000000) -> 0x1ff
bin(0xac) -> 0b10101100
hex(674) -> 0x2a2

[crutkas]

Actualy, tracked in #3272