Add Loptimizer vendor and Pocket Tester device entry

[eszymko]

Summary\n- add new vendor entry for Loptimizer\n- add loptimizer vendor index and device definition\n- add LoRaWAN profile for firmware 1.0.4 class A\n- include product image and references\n\n## Validation\n- make deps\n- make validate VENDOR_ID=loptimizer\n\nValidation completed successfully on local environment.

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