test: add test that build run downloads what it should #796

Job	Run time
open //sram:top_mix	4m 50s
Lint Bazel files	6s
open tag_array_64x184	2m 35s
Generate configs	13s
open L1MetadataArray	8m 57s
//sram:top_mix_grt	3m 17s
Local flow - clean setup	7m 19s
open subpackage:L1MetadataArray	7m 2s
tag_array_64x184_generate_abstract	3m 49s
open subpackage:tag_array_64x184	5m 33s
tag_array_64x184_report	2m 24s
lb_32x128_generate_abstract	4m 0s
lb_32x128_test_generate_abstract	2m 28s
L1MetadataArray_generate_abstract	5m 8s
data_2048x8_generate_abstract	2m 27s
regfile_128x65_floorplan	2m 22s
subpackage:L1MetadataArray_generate_abstract	5m 5s
subpackage:tag_array_64x184_generate_abstract	2m 14s
Local flow - preinstalled orfs	7m 13s
	1h 17m 2s

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