BIS-768: Added handling of unique property values to AS, expanded exception handling to provided meaningful messages

BIS-790: Working on exporting too large cell data as external files. Fixed the corresponding XLS export tests.

BIS-790: Working on exporting too large cell data as external files.

BIS-790: Working on adding data as images.

BIS-790: Working on exporting too large cell data as external files. Fixed the corresponding XLS export tests.

# Conflicts:
#	test-api-openbis-javascript/servers/common/core-plugins/tests/1/as/webapps/openbis-v3-api-test/html/test/test-import-export.js

BIS-772: Fixing failing JS test.

BIS-772: Working on different data structure, when exporting data not compatible with import. Fixing and improving tests.

BIS-772: Working on different data structure, when exporting data not compatible with import.

BIS-772: Working on different data structure, when exporting data not compatible with import. Work in progress.

BIS-772: Working on exporting a raw file, if it's the only result produced by export and the user specifies so. Added tests for this case.

BIS-772: Working on exporting a raw file, if it's the only result produced by export and the user specifies so. Fixed the tests.

BIS-772: Working on exporting a raw file, if it's the only result produced by export and the user specifies so.

BIS-772: Fixing the issue with nested zip files, when doing consecutive exports.

BIS-772: Added tests to verify that the data limit is checked.

BIS-772: Made Java tests work as intended after introduction of the data limit.

BIS-772: Working on data upload size limit.

SSDM-14263 : Deadlock on display settings - use less restrictive locking of "persons" table rows - thanks to that inserts to other tables that reference the locked persons are still possible (with select for update they would be not permitted)

Tempuserdoc

See merge request !26