added automated build & run into sdk/run.sh, README update

	cd sdk

Build a Docker container with the development environment and compile a "hello world" executable by running

	./run.sh

Then copy the resulting binary to the camera:

 - run on the computer:

	nc -l 1234 < hello

 - then run on the camera:

	nc 192.168.42.5 1234 > /tmp/hello && chmod +x /tmp/hello && /tmp/hello

By running script run.sh, build a Docker container with the development environment and compile a "hello world" executable (-b option), then copy and run it directly on the camera (-r option):

	./run.sh -br

# Running the script on Android (5.0+)

#!/bin/sh -euxo pipefail

#!/bin/bash

set -euo pipefail

sources="hello.cpp"

headers=""

outfile="hello"

build=false

run=false

usage=$(echo -e "Usage: run.sh [OPTIONS] \n\t-b build \n\t-r copy to camera and run")

if [ $# -eq 0 ]; then

    echo "$usage"

    exit 1

fi

while getopts "br" opt; do

  case ${opt} in

    b ) build=true

      ;;

    r ) run=true

      ;;

    \? ) echo "$usage"

      ;;

  esac

done

if [ "$build" = true ] ; then

    sudo docker build -t mi_camera_sdk .

    sudo docker run -it --rm -v "$PWD":/workdir mi_camera_sdk bash -c "cp $sources $headers /tmp && arm-linux-gnueabihf-c++ -o /workdir/$outfile $sources"

    echo -e "\n"

fi

if [ "$run" = true ] ; then

    sleep 1 && nc 192.168.42.1 1234 -w2 <"$outfile" &

    ./telnet.exp /tmp/"$outfile"

fi

docker build -t mi_camera_sdk .

docker run -it --rm -v "$PWD":/workdir mi_camera_sdk bash -c 'cp hello.cpp /tmp && arm-linux-gnueabihf-c++ -o /workdir/hello /tmp/hello.cpp'

#!/usr/bin/expect

set timeout 5

set filepath [lindex $argv 0]

spawn telnet 192.168.42.1

match_max 10000

expect "Trying 192.168.42.1...\r"

expect {

    "Connected to 192.168.42.1.\r" {}

    timeout {puts "timed out during connecting" ; exit 1}

    }

expect "Escape character is '^\]'.\r"

expect "\r\r"

expect "a12 login: "

send -- "root\r"

expect -exact "root\r

~ # "

send -- "nc -w3 -l -p 1234 >$filepath\r"

expect -exact "nc -w3 -l -p 1234 >$filepath\r

~ # "

send -- "chmod +x $filepath\r"

expect -exact "chmod +x $filepath\r

~ # "

send -- "$filepath\r"

expect -exact "$filepath\r"

#send -- "exit\r"

#expect eof

interact