asanza/LwIPFreeRTOS — reverse-engineered prompt

I want a simple working firmware example for the Olimex STM32 P107 board that brings up FreeRTOS and the lwIP network stack and builds cleanly with the ARM GCC toolchain. Please make this feel like a complete starter project, not just loose source files, so someone can clone it, run make, and then run make program to flash the board.

If anything is missing, fill in the gaps so the project is actually usable, including startup and config pieces, build settings, and a small demo app that proves the RTOS is running and the network stack is initialized. Keep it close to a real embedded sample project and do not add extra features that are not needed.

Also add a short README update that explains what the sample does, what board it targets, what tools are expected, and the basic build and programming steps. If you need board specific details or current toolchain info, look up the docs online and wire it up properly.