Clean up static initialization around "modem" functionality

[ctron]

Currently the initialization of the whole "modem" functionality is a cascade of static initialization blocks which, IMHO, has to be cleaned up.

SupportedUsbModemsInfo.java : triggers -> SupportedUsbModems

• No real difference to SupportedUsbModems

SupportedUsbModems: triggers -> SupportedUsbModemInfo

• depends on "lsusb", fails if this is not present
• iterates through a

SupportedUsbModemInfo: triggers -> UsbModemDriver

• Is a hardcoded list of modems

UsbModemDriver triggers -> ModemDriver

ModemDriver:

• depends on a system property target.name and fails with an NPE if it is not set
• has another hardcoded list of modems
• it has a big static list of devices in its static init block, which cannot be extended in any way
• every method has several switch blocks for different modem types

[github-actions]

This issue is stale because it has been open for 60 days with no activity.

[github-actions]

This issue was closed because it has been inactive for 14 days since being marked as stale.