Add lplot! for auto calibration plots

[fhagemann]

Plot recipe for the report returned by LegendSpecFits.autocal_energy:

result_autocal, report_autocal = autocal_energy(e_raw, raw_config_ch.th228_cal_lines)
LegendMakie.lplot(report_autocal, raw_config_ch.th228_cal_lines, figsize = (650,400), 
    title = get_plottitle(first(filekeys), det, "Calibrated DAQ Online Energy"))

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (dfbf775) to head (64b5a2e).
Report is 3 commits behind head on main.

Additional details and impacted files

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##              main       #20   +/-   ##
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  Coverage   100.00%   100.00%           
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  Files            8         8           
  Lines          547       556    +9     
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+ Hits           547       556    +9     

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