new pan_lwip_http_server example

- add lwIP sources commit b3a939417 (after STABLE-2.1.1) as 3rd-party/lwip/core
- add small DHCP server as 3rd-party/lwip/dhcp-server
- add BNEP lwIP adapter that ha

new pan_lwip_http_server example

- add lwIP sources commit b3a939417 (after STABLE-2.1.1) as 3rd-party/lwip/core
- add small DHCP server as 3rd-party/lwip/dhcp-server
- add BNEP lwIP adapter that handles BNEP events and forwards packets between BNEP and lwIP (only tested for NO_SYS == 1)
- add pan_lwip_http_server example that provides lwIP http server on http://192.168.7.1
- example is added to port/libusb

show more ...