ICARUS configuration regression : threshold tags show up in sigproc config

[brettviren]

This test shows ICARUS config has a regression

bats test/test/test-issue220.bats

 ✗ no wiener_threshold_tag in cfg
   tags: issue:220
   (in test file test/test/test-issue220.bats, line 16)
     `[[ -z "$found" ]]' failed
   found with wiener_threshold_tag:
   /nfs/data/1/bviren/porting/toolkit/cfg/pgrapher/experiment/icarus/sp.jsonnet:      wiener_threshold_tag: 'threshold%d' % anode.data.ident,
 ✗ no threshold tags in cfg - this fails until wclsFrameSaver issue resolved
   tags: issue:220
   (in test file test/test/test-issue220.bats, line 26)
     `[[ -z "$found1" ]]' failed
   found with 'threshold' tags:
   /nfs/data/1/bviren/porting/toolkit/cfg/pgrapher/experiment/icarus/wcls-sim-drift-simchannel.jsonnet:  sp_thresholds: wcls.output.thresholds(name='spthresholds', tags=['threshold']),
   /nfs/data/1/bviren/porting/toolkit/cfg/pgrapher/experiment/icarus/wcls-multitpc-sim-drift-simchannel.jsonnet:  sp_thresholds: wcls.output.thresholds(name='spthresholds', tags=['threshold']),
   /nfs/data/1/bviren/porting/toolkit/cfg/pgrapher/experiment/icarus/wcls-multitpc-sim-drift-simchannel-omit-noise.jsonnet:  sp_thresholds: wcls.output.thresholds(name='spthresholds', tags=['threshold']),

2 tests, 2 failures

Note #220