Add HTTP example for nRF

examples/Makefile

examples/nRF52/.gdbinit

examples/nRF52/Makefile

examples/nRF52/Makefile.build

examples/nRF52/README.md

examples/nRF52/bleconfig.c

examples/nRF52/bleconfig.h

examples/nRF52/config/app_cfg.h

examples/nRF52/config/ipv6_medium_ble_cfg.h

examples/nRF52/config/ipv6_medium_platform.h

examples/nRF52/config/nrf_drv_config.h

examples/nRF52/config/pstorage_platform.h

examples/nRF52/config/sdk_config.h

examples/nRF52/gcc_startup_nrf52.s

examples/nRF52/ld/mongoose_example_nrf52.ld

examples/nRF52/ld/nrf5x_common.ld

examples/nRF52/main.c

examples/nRF52/myboard.h

examples/nRF52/rtt/README.txt

examples/nRF52/rtt/RTT/SEGGER_RTT.c