NXCALS-4536 "Feature support for fills in thin api"

Merge request template

COMPATIBILITY NOTE

Please make sure that this change is BACKWARDS COMPATIBLE and a new server will work correctly with clients using old APIs versions.

It may be that data sent in the new format will break the old clients.

In case of any potential incompatibility we have to inform our clients and schedule release & deployment with them.

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@acc-logging-team - please have a look for approval.

Dear Colleagues, The integration tests were successfully run on my healthy local environment as can be seen below. I would like to see if we get any errors on TEST after merging into develop. If required we will revert proposed changes.

Closes NXCALS-4536