`SmallString<SIZE>`: Added `fmt::Display` impl

Fortune for stack-str's current commit: Curse − 凶

src/small.rs

@@ -310,3 +310,14 @@ impl<const SIZE: usize> std::str::FromStr for SmallString<SIZE>
 	Ok(Self{inner})
     }
 }
+
+impl<const SIZE: usize> fmt::Display for SmallString<SIZE>
+{
+    #[inline] 
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result
+    {
+	f.write_str(self.as_str())
+    }
+}
+
+//TODO: SmallString: fmt::Write, io::Write impls when extending functions have been written