SSDM-13579: Added a check in the pre-flight requests (OPTIONS) branch, which is required for a DELETE request. This is to make it do a real request check instead of merely accepting everything.

SSDM-13579: Made the server accept pre-flight requests (OPTIONS), which is required for a DELETE request.

SSDM-13251: Added missing transaction api methods handling to server, java-client and javascript-client

SSDM-13251: Changed dependencies of server-data-store to use new api-data-store-server project. Added basic interfaces, dtos and exceptions to api-data-store-server