infamy: Add support for capabilities

[mattiaswal]

Make possible to skip tested if a model is not found on unit for example, in the specific unit test: require("infix-containers", "2024-01-01") # if model infix-containers is not found with revision 2024-01-01, skip test.

Another thing that should be implemented at the same time is specific yangdirs per dut in physical topology, so that we support different devices with different capabilities in the same topology.

Future extension could be to check if a specific feature exist.