Implement Error trait for uefi::Error

This is useful to integrate with error handling libaries, such as
anyhow.

Author: blitz

uefi/src/lib.rs

@@ -41,6 +41,7 @@
 #![feature(maybe_uninit_slice)]
 #![feature(negative_impls)]
 #![feature(ptr_metadata)]
+#![feature(error_in_core)]
 #![cfg_attr(feature = "alloc", feature(vec_into_raw_parts))]
 #![cfg_attr(docsrs, feature(doc_auto_cfg))]
 #![no_std]

uefi/src/result/error.rs

@@ -45,3 +45,5 @@ impl<Data: Debug + Display> Display for Error<Data> {
         write!(f, "UEFI Error {}: {}", self.status(), self.data())
     }
 }
+
+impl<Data: Debug + Display> core::error::Error for Error<Data> {}