[#TODO]

[*] This is the order I want to follow, because I need them in thread context.
    - Allocator interface
    - Thread context (Base_Thread_Context.h)
    - Arenas (copy from Ex1)
    - Entry point(s) `Entry_Point_Main.cpp`
        -> We can have a lib_init() instead of a clear entry point for now.
        -> Switch from library to application once I add an entry point
        -> See how rjf abstracts his entry points for each platform with TCTX.
[ ] 1. setup thread-local storage via thread_static (see raddbg, base_core.h, 
    C_LINKAGE thread_static TCTX *tctx_thread_local;
        >> Must be assigned at entry point (arena_alloc())
        >> TCTX defined in base_thread_context.h
    > See Base_Thread.h