Windows Serial driver install blocks installer with ST boards

## problem
If using an ST board then the installer doesnt recognize it during the 'windows serial driver' install process.

## Solution
Either install the ST driver and then the windows serial driver, or have a fallback on failure for windows serial driver install that says 'no board connected, cannot install serial driver, please install serial driver when you have a board' or give the ability to skip the install of the serial driver phase

Start by locating the Windows serial driver installation phase in the installer and reproduce it with an ST board connected. Compare the current behavior with the requested alternatives: install the ST driver first, provide a no-board fallback, or allow this phase to be skipped. Done means an ST board no longer blocks installation and the user receives a clear next step.

Written by the indexing model from the issue text.