Introduces new `package.json` properties for upcoming plugin hub updates to `insomnia-plugin-kong-bundle`.
- Add `$.insomnia.displayName` for plugin display name on UI & GUIs
- Add `$.insomnia.bundle` boolean flag denotes bundle status to show individual plugins on hub
- Add `$.insomnia.applications` object to be used for install buttons and checks
- Add `$.insomnia.images.icon` property for plugin icon
- Add `$.insomnia.images.cover` property for plugin cover image
