Tests

Improvements to graph plotting #196

Job	Run time
Tests (1, IO) / Tests - IO	11m 33s
Tests (1, Core) / Tests - Core	30m 25s
Tests (1, Spatial) / Tests - Spatial	15m 50s
Tests (1, Extensions) / Tests - Extensions	24m 16s
Tests (lts, Core) / Tests - Core	23m 12s
Tests (lts, Extensions) / Tests - Extensions	15m 9s
Tests (lts, IO) / Tests - IO	9m 37s
Tests (lts, Spatial) / Tests - Spatial	11m 2s
Tests (pre, Core) / Tests - Core	29m 34s
Tests (pre, Extensions) / Tests - Extensions	24m 18s
Tests (pre, IO) / Tests - IO	11m 41s
Tests (pre, Spatial) / Tests - Spatial	16m 23s
	3h 43m 0s

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