[enhancement] Change default pins for led block on nano robots

[rmoesbergen]

Ben bezig met het vertalen van de lesboeken naar Engels. Is het mogelijk het blok voor de rgb led in alle nano omgevingen (nu alleen voor de Flitz zo) op pin 8 Gnd, pin 9 blauw, pin 10 groen en pin 11 rood te zetten?

[rmoesbergen]

For the developer, beware:

• There are currently 2 led blocks, one for flitz, one for the rest, which uses the C++ library setLed() function with hard-coded pin numbers. It also doesn't set the ground pin to low (bug). See https://github.com/leaphy-robotics/leaphy-extensions/blob/01c1e26ceab627c2a2d87bf004b4e56aa13d4210/src/Leaphyoriginal1.cpp#L97
• The flitz block just generates inline code (one setPin, 3 analogWrite()'s).

To clean this up we should just have 1 block with the right defaults for all robot types that generates inline code and remove the setLed() function from the c++ library, but make sure not to break existing saves.