Add new control request to set wifi creds

[keeramis]

Description

Device-OS added a new control request to set network credentials without needing for a connection attempt. This PR adds support to use this control request to configure wifi network. If device is of device-os version which does not support this control request (which is 6.x TBD), wifi is configured via serial commands

How to Test

1. Flash your wifi devices with Add set credentials usb request device-os#2763
2. Connect this CLI to this particle-usb PR Support to set network credentials via control request particle-usb#103
3. Most important! Correct this line in this PR to always use control requests - https://github.com/particle-iot/particle-cli/compare/feature/wifi-configuration?expand=1#diff-cd875ddf040ba04907a08a3fd03ef7fa0039f29267b30aca435178386162ec24R538
4. Run npm start -- serial wifi

Completeness

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

[hugomontero]

@keeramis I was checking particle-usb and saw that setWifiCredentials function was removed so this PR should be closed right?

[keeramis]

@hugomontero Thanks for taking a look! I am temporarily closing this PR because of the new changes scoping out here. https://www.notion.so/particle/CLI-Improved-WiFi-Configuration-8a2ee199e4484b428e0ee0c9b26d219a