[DUKPP-03-TESTS] Added tests for deleting properties.
[DUKPP-03-TESTS] Added tests for deleting properties.

mamontov-cpp/dukpp-03,mamontov-cpp/dukpp-03,mamontov-cpp/dukpp-03,mamontov-cpp/dukpp-03,mamontov-cpp/dukpp-03,mamontov-cpp/dukpp-03,mamontov-cpp/dukpp-03