Finalize/Dispose patterns about foster

[NoelFB]

Alright, I've pushed an implementation but leaving this open until it's been reviewed a little more. Basically it should ensure that all resources are 1) properly deleted and 2) their managed objects are also marked as Disposed, so even if you run the Application multiple times and reference managed objects from before, they will no longer think that they're still valid.

[NoelFB]

This seems like it's working well in all my stuff, so closing!

[NoelFB]

Interesting! Yeah I didn't consider finalizers not being called on application exit. I do currently delay dispose for graphical resources until it's on the main thread since the finalizers can run off-thread, but we should fix the other issues and maybe streamline that at the same time. I can look into this.

[MrBrixican]

Awesome! Looks great.