Using updated ABC_fifo.h file
/*
- ABC_fifo.h - v0.0.11 - Public Domain
+ ABC_fifo.h - v0.0.12 - Public Domain
Author: Aviv Beeri, 2018
How To Use:
Version History:
+ v0.0.12 - Moved the SDL warning so ABC_fifo can be compiled in a seperate translation unit.
v0.0.11 - When closing, we actually make sure all the threads can wake up
waiting for them all.
v0.0.10 - We block when closing the FIFO til all threads finish
