naja: test and mock naja target #842

Job	Run time
Lint Bazel files	4s
//sram:top_mix_grt	3m 13s
Generate configs	12s
Smoketests	5m 21s
tag_array_64x184_generate_abstract	3m 46s
tag_array_64x184_report	2m 18s
lb_32x128_generate_abstract	3m 46s
open //sram:top_mix	2m 59s
Local flow - clean setup	7m 10s
lb_32x128_test_generate_abstract	2m 18s
open tag_array_64x184	2m 5s
L1MetadataArray_generate_abstract	5m 0s
open L1MetadataArray	4m 9s
data_2048x8_generate_abstract	2m 19s
open subpackage:L1MetadataArray	4m 14s
open subpackage:tag_array_64x184	2m 9s
regfile_128x65_floorplan	2m 14s
subpackage:L1MetadataArray_generate_abstract	5m 7s
subpackage:tag_array_64x184_generate_abstract	2m 9s
Local flow - preinstalled orfs	7m 9s
	1h 7m 42s

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