Do not install Chart plugin by default

[ozyx]

Closes #5088

Describe your changes:

Do not install the Chart plugin by default in MCT.js, but add it to the list of plugins installed when running in development mode (e.g. npm start workflow).

All Submissions:

• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?
• Is this change backwards compatible? For example, developers won't need to change how they are calling the API or how they've extended core plugins such as Tables or Plots.

Author Checklist

• Changes address original issue?
• Unit tests included and/or updated with changes?
• Command line build passes?
• Has this been smoke tested?
• Testing instructions included in associated issue?

Reviewer Checklist

• Changes appear to address issue?
• Changes appear not to be breaking changes?
• Appropriate unit tests included?
• Code style and in-line documentation are appropriate?
• Commit messages meet standards?
• Has associated issue been labelled unverified? (only applicable if this PR closes the issue)
• Has associated issue been labelled bug? (only applicable if this PR is for a bug fix)

[codecov]

Codecov Report

Merging #5163 (91d0973) into master (405418b) will decrease coverage by 0.09%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #5163      +/-   ##
==========================================
- Coverage   50.27%   50.17%   -0.10%     
==========================================
  Files         548      548              
  Lines       20129    20127       -2     
  Branches     1864     1864              
==========================================
- Hits        10119    10098      -21     
- Misses       9526     9551      +25     
+ Partials      484      478       -6     

Impacted Files	Coverage Δ
src/MCT.js	97.80% <ø> (-0.05%)	⬇️
...lugins/plot/overlayPlot/OverlayPlotViewProvider.js	14.28% <0.00%> (-78.58%)	⬇️
src/plugins/charts/bar/plugin.js	71.42% <0.00%> (-28.58%)	⬇️
src/ui/inspector/InspectorViews.vue	64.28% <0.00%> (-28.58%)	⬇️
...ugins/plot/inspector/PlotsInspectorViewProvider.js	64.28% <0.00%> (-28.58%)	⬇️
...Conductor/independent/IndependentTimeConductor.vue	0.00% <0.00%> (-28.13%)	⬇️
src/plugins/plot/Plot.vue	38.46% <0.00%> (-23.08%)	⬇️
src/plugins/plot/inspector/PlotOptions.vue	80.00% <0.00%> (-20.00%)	⬇️
...rts/bar/inspector/BarGraphInspectorViewProvider.js	81.81% <0.00%> (-9.10%)	⬇️
...tter/inspector/ScatterPlotInspectorViewProvider.js	81.81% <0.00%> (-9.10%)	⬇️
... and 24 more

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[akhenry]

Looks great, thank you @ozyx !