Enable Transmission Request #863fwpt2d #863fwptf5

This issue is related to the following Click-Up tasks:

• https://app.clickup.com/t/863fwpt2d
• https://app.clickup.com/t/863fwptf5

Current state

Whoever wants to receive data has to scan a QR-Code create by the device that is supposed to send the data.

New feature

Make it possible for a party to request data by providing a QR-Code to be scanned by the device that is supposed to send the data. The sending device has to verify that the data will be received by the requesting party before sending it.