Support trace summary in ChannelSelector

[wenqiang-gu]

In the current ProtoDUNE configuration, we have two stages: 1) NF + SigProc + DNNROI; 2) 3D Imaging. The stage1 outputs ("gauss", "wiener", threshold summary of "wiener") are saved in the artROOT file. Now, to run stage2 in each APA, we use a ChannelSelector to filter traces from a frame.

However, I notice that the trace summary is not supported in ChannelSelector:

wire-cell-toolkit/sigproc/src/ChannelSelector.cxx

Line 120 in c138b92

sf->tag_traces(new_tag, tagged_trace_indices[ind]);

[HaiwangYu]

Hi Wenqiang, I think @ebelchio12 also has a local version on this.... Let us collect stuff from him first.