Add advanced query parameters

[denis-tingaikin]

Motivation

Current registry query implementation allows checking only on-field contains. We need to expand our query parameters to support operations such as AND, OR, NOT, MORE, LESS, EQUAL, CONTAINS

[edwarnicke]

Could you say a bit more? I don't quite see the use cases yet :)

[denis-tingaikin]

@edwarnicke I also think that the current API registry is ok for all our cases at this moment. But we'd discussed this issue with @haiodo and we found that in some time in future these options could be useful. So we can just put this issue to icebox :)

[edwarnicke]

Totally :)

[denis-tingaikin]

@edwarnicke I think we might schedule this for next releases. We faced with the problem in real use-cases (See at networkservicemesh/sdk#1521)