New Feature: Conditional update query

[akoserwal]

Problem Statement:

  "query": {
    "array": "AddressEntity",
    "elemMatch": {
      "$and" :[
                      { 
                         "field": "countryCode",
        	          "op": "=",
        	          "rvalue": "CA"
         	
                        },
                      {
        	         "field": "stateName",
        	         "op": "$in",
    		         "values":[ "Alberta", "British Columbia", "Manitoba"]
                     }
                  ]
                }
            }

Resultant projection of this type of query will be like:

{...
state: "Manitoba"
},
{....
state:"Alberta"
}

Requirement: To replace state name like "Manitoba" with "MB" & "Alberta" with "AB "will require conditional update statement.