tests

Add minimal Variant/Dynamic/JSON examples and tests using JSONEachRow format #1104

Job	Run time
node-unit-tests (18)	56s
node-unit-tests (20)	47s
node-unit-tests (22)	45s
node-integration-tests-local-single-node (18, head)	1m 1s
node-integration-tests-local-cluster (18, head)	1m 8s
web-all-tests-local-single-node (head)	55s
node-integration-tests-cloud-smt (18)	2m 55s
node-integration-tests-local-single-node (18, latest)	1m 3s
node-integration-tests-local-cluster (18, latest)	1m 6s
web-all-tests-local-single-node (latest)	53s
node-integration-tests-cloud-smt (20)	2m 20s
node-integration-tests-local-cluster (20, head)	1m 4s
node-integration-tests-local-single-node (20, head)	1m 0s
node-integration-tests-cloud-smt (22)	2m 21s
node-integration-tests-local-cluster (20, latest)	1m 1s
node-integration-tests-local-single-node (20, latest)	1m 2s
node-integration-tests-local-single-node (22, head)	1m 0s
web-integration-tests-cloud-smt	2m 8s
node-integration-tests-local-cluster (22, head)	1m 9s
web-integration-tests-local-cluster (head)	1m 8s
node-integration-tests-local-single-node (22, latest)	1m 2s
node-integration-tests-local-cluster (22, latest)	1m 5s
web-integration-tests-local-cluster (latest)	58s
node-all-tests-with-coverage-and-sonar	1m 45s
	30m 32s

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