Add constants to search plugin, with good lint (#1125) #1570

Job	Run time
ci / Build	5m 18s
ci / Lint	58s
ci / Test (0)	56s
ci / Test (1)	1m 5s
ci / Test (2)	1m 1s
ci / Test (3)	1m 5s
ci / Test (4)	2m 26s
ci / Test (5)	1m 18s
ci / Test (6)	1m 17s
ci / Test (7)	54s
ci / Test (8)	55s
ci / Test (9)	1m 6s
ci / Publish Unit Tests Results	1s
	18m 20s

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