Do not install Bar Chart plugin by default

[akhenry]

Summary

The Bar Chart plugin is being installed by default right now. This plugin is still somewhat experimental and in a state of flux, so it should be opt-in for now.

[unlikelyzero]

@akhenry will this need to be installed in viper-openmct and other downstream projects?

[ozyx]

Testing

Is not installed by default in production mode

1. Build OpenMCT from source
2. Start OpenMCT in production mode (e.g.: import openmct.js, call openmct.start()). Do not explicitly install the Chart plugin.
3. Notice that the Chart plugin is not installed by default (domain objects such as "Bar Graph" do not appear in the Create menu).

Is installed by default in development mode

1. Start OpenMCT in development mode (e.g.: npm start workflow)
2. Notice that the Chart plugin is installed by default ("Bar Graph" appears in the Create menu)

[unlikelyzero]

@ozyx if someone had an object created with this before the plugin was removed, how would open MCT behave on 'upgrade'?

[ozyx]

@ozyx if someone had an object created with this before the plugin was removed, how would open MCT behave on 'upgrade'?

Good question.

It looks like the current behavior is that any domain objects with missing or unregistered types are still displayed in the object tree, but as objects of UNKNOWN_TYPE:

e.g.:

Clicking on them routes properly but does not display anything other than the object name in the main view pane.

There doesn't seem to be any notification raised that MCT has encountered objects with unregistered types.

[akhenry]

Users will just have to install the plugin to restore the previous behavior, I think it's ok.

[khalidadil]

I'm not seeing the bar chart under the create menu on testathon. Verified fixed - testathon 06/09/22