0.1.8

• Allow the failure crate to be disabled through a feature toggle.
• Removed the parallel feature for cc.
• Removed max ash version (only require >= minimum).
• Added a way to cleanup Allocator without dropping it.
• Added a note to create_image describing VMA panic behavior in some circumstances.
• Updated VMA vendoring to commit hash 195016b0348038537dbd73d45d6ccaf795bfb367.
• Regenerated bindings and added function pointer wrapping for bind_buffer_memory2 and bind_image_memory2.