Support JobPlanInfo for the explain result #2

Job	Run time
Pre-compile Checks / Basic QA	5m 19s
Default (Java 8) / Compile	9m 48s
Default (Java 8) / Test packaging/licensing	16m 56s
Default (Java 8) / Test (module: core)	34m 20s
Default (Java 8) / E2E (group 1)	1h 39m 57s
Default (Java 8) / Test (module: python)	29m 52s
Default (Java 8) / E2E (group 2)	2h 0m 9s
Default (Java 8) / Test (module: table)	13m 43s
Default (Java 8) / Test (module: connect)	18m 24s
Default (Java 8) / Test (module: tests)	43m 19s
Default (Java 8) / Test (module: misc)	45m 42s
	7h 17m 29s

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