Add UnsafeImageCreateInfo and ImageViewCreateInfo

[Rua]

Changelog:

- **Breaking** `UnsafeImage` creation parameters are given using `UnsafeImageCreateInfo`.
- **Breaking** `ImageView` creation parameters are given using `ImageViewCreateInfo`.
- **Breaking** `ImageView::new` has been renamed to `new_default`.
- **Breaking** `ImageView::ty` has been renamed to `view_type`.
- **Breaking** The `format` methods of `UnsafeImage` and `ImageViewAbstract` now return `Option<Format>`.
- **Breaking** `UnsafeImage::flags` has been replaced with methods to return individual flags.

[AustinJ235]

Nothing stands out, great work!