- use memcpy instead of uint64_t pointer for pipe status event
- use memcpy instead of uint64_t pointer for pipe status event

as dereferencing an unaligned uint64_t* halts Arduino Zero (#23)

femtoduino/arduino-BLEPeripheral,sandeepmistry/arduino-BLEPeripheral,pi19404/arduino-BLEPeripheral,possan/arduino-BLEPeripheral,sandeepmistry/arduino-BLEPeripheral,pi19404/arduino-BLEPeripheral,possan/arduino-BLEPeripheral,femtoduino/arduino-BLEPeripheral,sandeepmistry/arduino-BLEPeripheral