Added support for VectorOfVectors by setting vector_len field when declaring variables

[iguinn]

When setting up a processing chain, it is now possible to read and write VectorOfVectors (see issue #3). To do so, when declaring an output variable, set vector_len to a variable that is a scalar integer. For example, here we set vt_min/max_out to have lengths determined by n_min/max_out:

          "vt_max_out, vt_min_out, n_max_out, n_min_out": {
          "function": "get_multi_local_extrema",
          "module": "dspeed.processors.get_multi_local_extrema",
          "args": ["wf_shorttrap", 250, 250, 1, 500, 0, "vt_max_out(20, vector_len=n_max_out)",
            "vt_min_out(20, vector_len=n_min_out)", "n_max_out", "n_min_out"],
          "unit": ["ns", "ns", "none", "none"]
        },

In addition, the WaveformBrowser is capable of drawing VectorOfVector quantities, using verticle or horizontal lines:

Some other changes:

• get_multi_local_extrema now uses uint32 for n_min and n_max. This is necessary to use these as the lengths in a VectorOfVectors. Instead of returning NaN, return 0
• Fixed tests for get_multi_local_extrema
• Fixed bug where dimensionless quantities were getting written in waveform browser legends with the word "dimensionless"
• Updated sipm config file in tests to use VectorOfVectors
• Now require LGDO version >= 1.4

[codecov]

Codecov Report

Attention: 28 lines in your changes are missing coverage. Please review.

Comparison is base (71e3f9c) 60.83% compared to head (c5849f0) 61.39%.

Files	Patch %	Lines
src/dspeed/processing_chain.py	71.05%	22 Missing ⚠️
src/dspeed/vis/waveform_browser.py	60.00%	6 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #25      +/-   ##
==========================================
+ Coverage   60.83%   61.39%   +0.56%     
==========================================
  Files          46       46              
  Lines        2913     2976      +63     
==========================================
+ Hits         1772     1827      +55     
- Misses       1141     1149       +8     

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[gipert]

Pinning legend-pydataobj to v1.5.0a1 should fix the CI!

[gipert]

Using setup.cfg from main should fix everything