Resource Synchronization Design Proposal

[AndrewB330]

Hello, recently I started using vulkano actively and noticed some limitation of the current implementation of resource synchronization. I wrote a small doc with my vision of the futures. I'm not fully familiar with the entire codebase yet, so I might miss some important thing in the design.

I would like to discuss this design with all vulkano maintainers if this idea sounds interesting to you. This doc isn't full yet, but it gives an overall idea. Feel free to make any comments here or in the doc, any suggestions are appreciated :)

https://docs.google.com/document/d/1yEDBNRt7EKsLsTL6vkdrqcGhEjsO7XbhSySclxnVNcY/edit?usp=sharing

P.S. Let me know if its better to paste this doc in the markdown, here on github, instead if using google docs.

@Rua @Eliah-Lakhin @AustinJ235