Tests

feat(mapping): TupleMapper utility and CRUD metadata support #167

Job	Run time
tests-unit	3m 31s
tests-crud-integration (2.11.8-ubuntu20.04)	2m 22s
tests-crud-integration (3.5.0)	2m 10s
tests-box-integration (2.11.8-ubuntu20.04)	18m 51s
tests-box-integration (3.5.0)	16m 24s
	43m 18s

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