etl

7a067ba8 - introduce bip buffer spsc atomic (#402)

introduce bip buffer spsc atomic (#402) Based on the works of Andrea Lattuada and James Munns: https://blog.systems.ethz.ch/blog/2019/the-design-and-implementation-of-a-lock-free-ring-buffer-with-contiguous-reservations.html Whose design was inspired by Simon Cooke: https://www.codeproject.com/Articles/3479/The-Bip-Buffer-The-Circular-Buffer-with-a-Twist Signed-off-by: Benedek Kupper <benedek.kupper@streamunlimited.com>