use all TAZs when using sharrow #1178

Job	Run time
linux-64-py	6m 4s
estimation_edb_creation_test	7m 15s
Estimation Notebooks Test	53m 8s
random_seed_generation_test	3m 3s
Expression Profiling Tests	8m 11s
Estimation Mode Unit Tests	26m 17s
win-64	16m 26s
macOS	9m 3s
Standard 1-Zone Example (MTC)	1h 8m 18s
Standard 2-Zone Example (SANDAG)	1m 46s
prototype_mtc	58m 11s
placeholder_psrc	46m 38s
prototype_marin	1m 58s
placeholder_multiple_zone	9m 42s
prototype_mtc_extended	1h 51m 17s
production_semcog	6m 0s
prototype_sandag_xborder	5m 45s
prototype_mwcog	58m 28s
develop-docbuild	0s
	8h 17m 30s

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