Barycentres and Core

Woah. Been a while.

This release adds two new features, the first is the addition of support for reading barycentre data, and finally having binary pairs able to trigger checks they were not previously able to (close orbit, shepherd moon, etc). The second is a hyperlink to the Observatory Core releases page to direct users to the new version. Since Core hasn't reached feature parity yet there is a setting to hide the link for those who wish to keep using this version.

This is very likely the final release Elite Observatory will see, barring some unprecedented change to Elite Dangerous that breaks it completely, or absolutely disastrous bug being discovered.

• Process barycentre events and allow them to trigger checks
• Add link to Observatory Core releases page
• Fix crash on startup if unable to retrieve application icon
• Remove erroneous space from custom criteria documentation for AtmosphereType