Display layouts are not installed by default

[akhenry]

Summary

Display layouts are a fundamental feature of Open MCT and should be installed by default. There is some logic that is supposed to install the layouts plugin automatically on startup if it was not already installed with deployment-specific configuration. It looks as though a subsequent change in the API invalidated this logic.

Steps to Reproduce

1. Download and install the open mct tutorial
2. Run the open MCT tutorial
3. Note that display layouts are not available from the create menu

Environment

• Open MCT Version: found in 2.0.5 but code is the same in 2.1.x
• Deployment Type: All

Impact Check List

• Data loss or misrepresented data?
• Regression? Did this used to work or has it always been broken?
• Is there a workaround available?
• Does this impact a critical component?
• Is this just a visual bug with no functional impact?
• Does this block the execution of e2e tests?
• Does this have an impact on Performance?

[akhenry]

Workaround is to install layouts manually:

openmct.install(openmct.plugins.DisplayLayout());