HP41 TULIP4041 update

[MeindertKuipers]

The idea of using an RP4 was also to have the development tools for the Pico/Pico2 available with sufficient performance, plus some performance on the RP4 is good to have when using the terminal emulators. Especially the trace window needs to process a lot af USB data.
You are correct that when using only pyILPer a limited performance platform can be used.