Allow test shell to query device dictionary
This is a feature request to allow querying device dictionary from test shell. It doesn't have to be possible to get everything from the dictionary. There should be a list of key:value pairs that can be queried with helper script in a form:
The use case is as follows: IGT test suite can be executed with Chamelium boards as 'supporting hardware' for DUT. Tests run on DUT and connect to Chamelium using IP address. The IP address of Chamelium is exclusive for the DUT (not device type) because of hardware connections. So DUT has to discover the IP of Chamelium connected to it. Part of that has to be a LAB setup ('static' IP addresses) but currently there is no way to do the discovery of arbitrary value from device dictionary.