Query based on Public CM Properties

It should be able to query all cmhandles with a given set of public cmhandle properties.

Interface Sketch

POST /ncmp/v1/data/ch/searches

{
  "publicCmHandleProperties" : {
          "Name-1" : "some-value",
          "Name-2" : "other-value"
   }
}

We want all cm-Handles where both things are true. Those properties also need to exist.
If query body does not follow supported structure return 400. Empty query will return all cm-Handles.

A/C:

1. Demo - with "and" behaviour
2. CI Test - two attributes

 
It should be possible to search with cmhandle public properties along with other search criteria like modules like below :
Interface Sketch of Potential Future Query

POST /ncmp/v1/data/ch/searches

{
  "publicCmHandleProperties" : {
     "publicPropertyName-1" : "publicPropertyValue-1",
     "publicPropertyName-2" : "publicPropertyValue-2"
   },
  "modules": [
    {
           "moduleName": "", (Mandatory)
           "revision": "" (Optional)
        }
  ]
}

Modules here is to demonstrate future intentions of endpoint but is out of scope for this user story.