[Spike] Delivery requests: support request preferences of user

According to UIU-1155, User data has to be extended to include Request Preferences data:

Following fields has to be supported:

"requestPreference": {
  "holdShelf" : "true/false",
  "delivery": "true/false",
  "defaultServicePointId": <servicePointId> 
  "defaultDeliveryAddressTypeId": <addressId>
  "fulfillment": "Delivery/Hold shelf"
}

"holdShelf" – boolean, is always "true";
"delivery" – boolean, "false" by default;
"defaultServicePointId" – UUID of service point or empty (if not set);
"defaultDeliveryAddressTypeId" – UUID of user's address type selected as default in case of Delivery, can be empty;
"fulfillment" – user's fulfillment type, one of two options: "Delivery", "Hold shelf". Default: "Hold shelf"

Since the above data belong to request processing logic, it's proposed to store it next to other request related stuff in mod-circulation/mod-circulation-storage.
The goal of the spike is to define the necessary steps to introduce Request Preferences per User in mod-circulation. The outcomes include but not limited to the following:

• how and where to store the data
• what API has to be provided to make the data available to UI module(s)
• what are the base components to implement
• POC (optional)