[Imagery] Allow imagery compass "HUD" element to be disabled

[charlesh88]

Is your feature request related to a problem? Please describe.
The imagery compass "HUD" element at the top of the screen visually interferes with a coordinate grid.

Describe the solution you'd like
Hide the HUD by default, and allow a deployment to configure the HUD to be displayed if desired.

[scottbell]

Adding new option showCompassHUD that needs to be set to true to enable the compass HUD.

[scottbell]

To test:

• Create Example Imagery
• Ensure Compass HUD in image is hidden (e.g., no "N", "S", "E", "W", "NE", etc.)
• Configure Imagery plugin with the option showCompassHUD set to true and ensure Compass HUD reappears in your Example Imagery.

[shefalijoshi]

Verified fixed.

[ozyx]

verified that the compass HUD no longer shows in our testing environment, but I cannot get the HUD to come back when passing showCompassHUD: true in the ExampleImagery options:

    openmct.install(
      openmct.plugins.example.ExampleImagery({
        showCompassHUD: true
      })
    );

Edit:

Verified fixed if I alter the ImageryPlugin install step:

    this.install(
      ImageryPlugin.default({
        showCompassHUD: true
      })
    );

Closing this as complete.