Customize validation jobs, reducing run-group combos #381

Job	Run time
validation / GitHub context	1s
validation / Dependency info	7s
validation / Configuration files	11s
validation / Build coatjava	1m 22s
validation / Event generation (e_p)	54s
validation / Event generation (e_n)	55s
validation / Event generation (e_g)	53s
validation / Event generation (e_pC)	26s
validation / Event generation (eFT_K)	51s
validation / Event generation (e_gFT)	58s
validation / Run (e_p, rgb_fall2019)	5m 5s
validation / Run (e_n, rgb_fall2019)	5m 28s
validation / Run (e_g, rgb_fall2019)	5m 2s
validation / Run (e_pC, rgb_fall2019)	5m 24s
validation / Run (eFT_K, rgb_fall2019)	5m 18s
validation / Run (e_gFT, rgb_fall2019)	5m 25s
validation / Final	5s
	38m 25s

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