[Story] Implement Class B Beaconing

[Mandur]

Description

To support #1748 we want to support Class B beaconing as the spec

Out of Scope

• All features others than beaconing (Class B leaf devices, ...) won't be supported

Acceptance criteria

• Implement Class B beaconing as described in Add support for Class B #1748
  • Poc Branch is linked in the issue
  • Ensure the configure don't break if Class B information is not provided
• Beaconing is tested for European frequency with custom GPS information #1909
• Documentation is written and published on how to set up beaconing #1910
• Class B code should be cleaned and tested

Resources

Configuration additional block in the form

"bcning": {
                    "DR": 3,
                    "layout": [
                        2,
                        8,
                        17
                    ],
                    "freqs": [
                        869525000
                    ]
}

See device 0342A3FFFEBF2FA1 in the former E2E iot hub