feat(exporter): add Cloud Foundry App resource export support #426

Job	Run time
run-reuse-license-check / lint-reuse	13s
run-make-reviewable-and-check-diff / reviewable-checkdiff	5m 22s
run-unit-test / unit-tests	2m 18s
run-go-license-check / Check licenses of dependencies	1m 4s
	8m 57s

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