use all TAZs when using sharrow #1106

Job	Run time
linux-64-py	6m 10s
random_seed_generation_test	2m 59s
Estimation Mode Unit Tests	24m 29s
estimation_edb_creation_test	6m 53s
win-64	12m 10s
Expression Profiling Tests	7m 58s
macOS	10m 39s
Estimation Notebooks Test	52m 34s
Standard 1-Zone Example (MTC)	50m 25s
Standard 2-Zone Example (SANDAG)	1h 26m 47s
prototype_mtc_extended	1h 30m 6s
production_semcog	6m 38s
prototype_mtc	57m 44s
placeholder_multiple_zone	10m 23s
prototype_sandag_xborder	6m 3s
prototype_mwcog	58m 38s
placeholder_psrc	56m 31s
prototype_marin	1m 53s
develop-docbuild	0s
	9h 9m 0s

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