V1.0: Recursive scan

v1.1: Collects more metadata

v2.0: Multi threaded scan

v2.1: Uses AVX2 instead of SSE2

v3.0: Simple mutex/critical section based MPMC queue

v3.1: Lock free MPMC queue Vyukov-style

v3.2: Making the lock free MPMC queue growable
Add padding to avoir false sharing
Add sleep() and SwitchToThread() to limit spinning

v3.3: Fix bug slots used before initialization,compare and swap is protecting updating committed, but it is not protecting the memory initialization. Adding atomic_flag commit_lock to protect against that
Fix bug multiple threads committing at the same time, fixed by using atomic_flag commit_lock and re-checking committed after acquiring the lock
Reorder helper functions

v3.4: Rewriting hash_worker() to export file_hashes.txt

3.5: Instead of writing directly to file_hashes.txt, hash_workers now are using a local arena, writing everything once at the end
Using #pragma once to ensure that a given header file is included only once in a single compilation unit
Forcing xxhash to use the stack instead of the heap
Making the hashing buffer reusable instead of malloc every file
Implementing a general purpose arena to replace small allocations
Small improvements of the LF MPMC queue
Making the LF MPMC queue generic and in a seperate header file

4.0: Implementing a semaphore in the LF MPMC queue to wake up consumers when there is items in the queue instead of spinning (busy waiting) or sleeping, this makes the queue spin only when the slots are transitionning (multiple consumers claiming the same slot)

Making the MPMC queue platform agnostic

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

4.1: Using xxhash xxh_x86dispatch to select the best SIMD instruction set at runtime, this dispatcher can not be added in a unity build and we must remove AVX2 or AVX512 compilation flags, link xxh_x86dispatch.c in the compilation command. The compilaiton throws two warnings about function with internal linkage but not defined, they are defined in xxh_x86dispatch.c so it's harmless warnings

Fixing user prompt parsing
