use all TAZs when using sharrow #1177

Job	Run time
linux-64-py	6m 11s
random_seed_generation_test	3m 7s
Estimation Notebooks Test	50m 50s
Estimation Mode Unit Tests	26m 1s
Standard 2-Zone Example (SANDAG)	2m 7s
Standard 1-Zone Example (MTC)	1h 9m 5s
macOS	10m 55s
estimation_edb_creation_test	7m 13s
Expression Profiling Tests	5m 51s
placeholder_multiple_zone	13m 56s
prototype_sandag_xborder	5m 38s
prototype_mwcog	55m 58s
prototype_mtc	58m 14s
prototype_mtc_extended	1h 46m 13s
placeholder_psrc	46m 29s
win-64	15m 57s
prototype_marin	1m 39s
production_semcog	1m 46s
develop-docbuild	0s
	8h 7m 10s

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