Add support for remote cloud database fetching of installation codes (OOB mechanism)

[devpcb]

This PR introduces support for fetching device installation codes from a remote cloud database through an out-of-band mechanism, replacing the current QR code dependency or manually write install code. The proposed system would allow pre-registration of device IEEE addresses with their corresponding installation keys in a secure cloud database prior to joining.

When a device attempts to join the network, the Trust Center would identify it by MAC association and automatically retrieve the pre-provisioned installation key from the cloud database based on the device's IEEE address. The remote system would then securely transmit this key to the Trust Center, enabling the establishment of security credentials before the standard in-band joining process begins.