DevTools binary diagnostics

[stevemonaco]

Is your feature request related to a problem? Please describe.

There is some blind trust regarding what assemblies and assets are loaded at runtime (and their Uri), especially for beginners.

Describe the solution you'd like

A new tab in DevTools, called "Binaries" (ideally a better name...) which has the following features:

• List all loaded (non-native?) Assemblies
• List all loaded Assets (by Uri and size)
• List fonts within font assets and their expected Uri + key

Describe alternatives you've considered

Making this separately available as a third-party component similar to DevTools.

Additional context

There is already a prototype at https://github.com/stevemonaco/AvaloniaDemos/tree/master/Debugging which has some showcase videos. Some code/UI cleanup and extra testing (multiple assembly projects) will be needed.

Font Name IDs are not accessible through Avalonia or HarfBuzzSharp, but I can P/Invoke libHarfBuzzSharp to get that information.

I would integrate and PR the acceptable features into DevTools.