Add MAC accessor for returning the MAC in the usual format

The MAC address in the bluetooth.MAC type is little endian, the reverse
of what is commonly used. The usual way a MAC address is printed is big
endian. To simplify code, the Address() method will return the address
in the usual (big endian) format.

Author: aykevl

mac.go

@@ -56,6 +56,11 @@ func (mac MAC) String() string {
 	return unsafe.String(unsafe.SliceData(buf), 17)
 }
 
+// Address returns the MAC address in the typical (big-endian) format.
+func (mac MAC) Address() [6]uint8 {
+	return [6]uint8{mac[5], mac[4], mac[3], mac[2], mac[1], mac[0]}
+}
+
 const hexDigit = "0123456789ABCDEF"
 
 // AppendText appends the textual representation of itself to the end of b