sweep: add sweep macro #888

Job	Run time
Lint Bazel files	6s
Smoketests	7m 26s
//sram:top_mix_cts	3m 13s
Generate configs	9s
tag_array_64x184_generate_abstract	4m 2s
open //sram:top_mix	3m 31s
tag_array_64x184_report	2m 27s
Local flow - clean setup	6m 55s
open tag_array_64x184	2m 16s
lb_32x128_generate_abstract	3m 52s
open L1MetadataArray	4m 31s
lb_32x128_test_generate_abstract	2m 22s
open subpackage:L1MetadataArray	4m 35s
L1MetadataArray_generate_abstract	5m 12s
open subpackage:tag_array_64x184	2m 15s
data_2048x8_generate_abstract	2m 26s
regfile_128x65_floorplan	2m 29s
subpackage:L1MetadataArray_generate_abstract	5m 13s
subpackage:tag_array_64x184_generate_abstract	2m 21s
Local flow - preinstalled orfs	6m 56s
	1h 12m 17s

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