Mpy install script bugs improvements

[jaenrig-ifx]

By creating this pull request you agree to the terms in CONTRIBUTING.md.
https://github.com/Infineon/.github/blob/master/CONTRIBUTING.md
--- DO NOT DELETE ANYTHING ABOVE THIS LINE ---

CONTRIBUTING.md also tells you what to expect in the PR process.

• Error handling without traceback
• Input board error handling
• Coloring relevant output messages
• Added updating flasher firmware in quick-start and device-setup
• Installation of tools only if not already downloaded
• Rewriting files if already existing due to previous runs or failed runs
• Update docs

[github-actions]

Code size report:

   bare-arm:    +0 +0.000% 
minimal x86:    +0 +0.000% 
   unix x64:    +0 +0.000% standard
      stm32:    +0 +0.000% PYBV10
     mimxrt:    +0 +0.000% TEENSY40
        rp2:    +0 +0.000% RPI_PICO
       samd:    +0 +0.000% ADAFRUIT_ITSYBITSY_M4_EXPRESS

[NikhitaR-IFX]

So I tried the script but in windows - Updating kitprog3 firmware is failing with "fwloader error". I am following the steps as quickstart one. Also the same error in wsl.

[IFX-Anusha]

it works !