Feature/sc 121839/rework flash to use particle usb dfu

[keeramis]

Description

1. particle flash --usb will be able to flash modules over dfu as well as control requests
2. Puts the device in dfu mode or normal mode without needing user intevention
3. Adds a warning for particle doctor that it is not available for Gen3 devices
4. Throws a warning if bundle.zip is given to this command for flashing

How to Test

Run particle flash --usb /path/to/bin command with a binary of your choice

Related Issues / Discussions

Completeness

• [x] User is totes amazing for contributing!
• [x] Contributor has signed CLA
• [x] Problem and solution clearly stated
• [x] Tests have been provided
• [x] Docs have been updated
• [x] CI is passing