Object Editor 2.0.0

What's Changed

Ported the program to use AvaloniaUI which is cross-platform, allowing the object editor to run on Linux and maxOS (in addition to Windows).

• Flag editing support by @LeftofZen in #18
• Dark mode by @LeftofZen in #21
• Bundled object icons by @LeftofZen in #26
• Cross-platform images by @LeftofZen in #24
• Linux support by @LeftofZen in #41
• Linux support 2 by @LeftofZen in #42

Full Changelog: 1.0.4...2.0.0