Cumulocity Edge should support LwM2M protocol

Cumulocity Edge should support devices communicating using the LwM2M protocol. This would allow deployments with devices that do not support C8y's REST/MQTT protocols and/or require a more lightweight transport protocol than HTTPS (i.e. COAPS). These deployments are possible to the public cloud (cumulocity.com) but not to Edge instances.

We are developing a device that will use a lightweight protocol (e.g. LwM2M) and want this to communicate with any C8y instance regardless of the deployment type.