Remove dynamic binding introduced with #1841

[kbeaugrand]

Description
Some dynamic binding has been introduced in LoRaEngine/modules/LoRaWanNetworkSrvModule/LoraTools/IoTHubImpl/IoTHubTwinPropertiesContainer.cs.
This dynamic binding comes because this class is a partial abstraction of twin properties collection.

We must implement dedicated wrapper for twin properties that match with specifics instances of device twins to remove this dynamic binding.
However, this was not done in the #1841 because this impact a huge.

We might work to remove that in future refactor.