number.toString takes no params, browser takes a radix

[johnstonmatt]

Is your feature request related to a problem? Please describe.
I am trying to build a counter with a micro:bit that represents binary numbers using Neopixels, it is currently difficult to convert an integer from base10 to base2, though that is easy in the browser. You can just pass the radix in as a param, but the make code platform number.toString takes no args.

Describe the solution you'd like
Reflect the toString functionality that is standard in the browser

Describe alternatives you've considered
A new function for going from base 10 to a base 2 string could work

Additional context
Thanks!

[Thefurypig]

@riknoll progress ？