Updating the LF MPMC queue and replacing DirQueue with it

Making the MPMC queue support when producers are consumers at the same
time by adding a variable work, mpmc_push_work() that increments work
and mpmc_task_done() that decrements work, and if work = 0 calls
mpmc_producers_finished() that pushes poinsons to wake up sleeping
threads and make them return NULL

Replacing DirQueue, a queue growable with realloc with the MPMC queue

binaries/changelog.txt

@@ -37,3 +37,7 @@ Align the MPMC queue to pagesize
 Getting file size from FindFirstFileA() instead of CreateFileA(), since we already call FindFirstFileA() and it returns the size there is no need to open/close every file to get it's size
 
 Replacing Malloc and strdup in scan helper function with FileEntry and path arenas
+
+Making the MPMC queue support when producers are consumers at the same time by adding a variable work, mpmc_push_work() that increments work and mpmc_task_done() that decrements work, and if work = 0 calls mpmc_producers_finished() that pushes poinsons to wake up sleeping threads and make them return NULL
+
+Replacing DirQueue, a queue growable with realloc with the MPMC queue