XDCR - Loss in order for version deltas as JSON objects

From the original design of HLV in https://docs.google.com/document/d/1nskp5BvmH5vgjSjYX-eWNLygwlDNBipDsQdh0eOEjUw/edit#heading=h.she1wg4y026y, PVs and MVs are json objects. However json objects are unordered. From json.org: “An object is an unordered set of name/value pairs.”. This will affect version deltas (MB-60961), as we need the key/values to be stored in a specific order as computed.

More detail and potential solutions: https://docs.google.com/document/d/1Zhta5468hXS2XKU26bWAn7OJix0IkVEi8CiL6jojIAI/edit#heading=h.apnsy42nwvkq