Added AvaloniaUI logo as icon in Examples
There were no window icons in the Examples so I created an "icon.ico" from the AvaloniaUI logo and added it to each sample project. I tried to remain consistent but had some trouble with getting the assets picked up as AvaloniaResources, per se. So I'm importing it directly - which may be a bit naïve - or at least not a canonical example.

Awesome, thanks a lot for your contribution 😃 I'll try out later to check if there's any better option to import icons, but if not this should be okay!
If you don't mind waiting, can we delay merging this PR until #179 is merged? There's a lot of examples being added there that could use the icons once it's done as well.
@houstonhaynes thanks a lot for the patience! We just got #179 merged, so you'd probably get some merge conflicts on the .fsproj files of the samples (they were moved to two different folders). If you could please update that and add the same icon to the new projects that were created in the Components folder it'd be great 😃
Sorry, didn't mean to close this...was trying to get it merged, but I am bad at git. 🙁