Set Get Entities config Search Criteria/Properties via msg

[MisterWil]

Is your feature request related to a problem? Please describe.
I would like to be able to get a list of all entities based on a non-fixed search criteria.

Specifically in this instance I would like to be able to pass in the msg.payload (which is a regex string) as an entity_id IS regex string search criteria.

Describe the solution you'd like
Consume some msg attribute that represents the search criteria. Something like the actual representation of the node would work:

"getEntityConfig": [
    {
        "property": "entity_id",
        "logic": "is",
        "value": "light\\..*",
        "valueType": "rg"
    }
]

Describe alternatives you've considered
Perhaps support JSONATA as a value type?