Expression profiling (legacy mode) (#936) #980

Job	Run time
linux-64-py	5m 39s
random_seed_generation_test	3m 9s
win-64	8m 19s
macOS	5m 26s
Standard 1-Zone Example (MTC)	44m 29s
Standard 2-Zone Example (SANDAG)	1m 5s
prototype_mtc	48m 37s
placeholder_psrc	46m 37s
production_semcog	6m 19s
prototype_mtc_extended	1h 17m 8s
prototype_marin	1m 36s
prototype_mwcog	47m 45s
placeholder_multiple_zone	10m 17s
prototype_sandag_xborder	5m 45s
Expression Profiling Tests	7m 30s
Estimation Mode Unit Tests	7m 49s
develop-docbuild	4m 20s
placeholder_sandag	2h 28m 6s
	7h 59m 56s

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