feat(dre): filtering of registry

[NikolaMilosa]

With this PR we add the ability to do some filtering on the registry output.
Example:

./target/debug/dre --offline registry -f subnet_type=system

This will return all the objects that contain a json structure

{
  ...
  "subnet_type": "system",
  ...
}

It is possible to chain multiple filters and the tool will only pick objects which have all filter satisfied

These objects can be nested as well in what case the output will contain all of the higher level objects values.