#LwIP system integration

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#Why?

Bluetooth APN needs IP & routing and level 2 TCP/IP stack.

#How?

LwIP sources needed are added as shallow submodule in lib. Our needed sources, not from libraries are in interfaces (now only there)

• module-lwip One place for LwIP code
  • lib Place for LwIP submodule
  • interfaces Our defined LwIP interfaces place. We need:
    • BNEP - bluetooth network encapsulation protocol - interface
    • PPP - gsm interface for PPP PDP communication