-`MemoryMap::as_raw` which provides raw access to the memory map. This is for

example useful if you create your own Multiboot2 bootloader that embeds the

EFI mmap in a Multiboot2 boot information structure.

-`Mode` is now`Copy` and`Clone`

-`SystemTable::exit_boot_services` is now`unsafe`. See that method's

returned type is automatically freed on the UEFI heap, as long as boot

services are not excited. By removing the need for that explicit buffer and

the lifetime, the API is simpler.

-`GraphicsOutput::query_mode` is now private. Use`GraphicsOutput::modes`

instead.

- Removed the`panic-on-logger-errors` feature of the`uefi` crate. Logger

pubfnquery_mode(&self,index:u32,bs:&BootServices) ->Result<Mode>{

fnquery_mode(&self,index:u32,bs:&BootServices) ->Result<Mode>{

letmut info_sz =0;

letmut info_heap_ptr = ptr::null();

pubfnmodes<'a>(&'aself,bs:&'aBootServices) ->ModeIter{