Add image badges to README
Add image badges to README

Cocoapods based version and license badges
Travis based build status

FordDev/sdl_ios,APCVSRepo/sdl_ios,kshala-ford/sdl_ios,FordDev/sdl_ios,davidswi/sdl_ios,kshala-ford/sdl_ios,kshala-ford/sdl_ios,kshala-ford/sdl_ios,duydb2/sdl_ios,FordDev/sdl_ios,APCVSRepo/sdl_ios,davidswi/sdl_ios,smartdevicelink/sdl_ios,APCVSRepo/sdl_ios,adein/sdl_ios,davidswi/sdl_ios,FordDev/sdl_ios,adein/sdl_ios,smartdevicelink/sdl_ios,smartdevicelink/sdl_ios,duydb2/sdl_ios,smartdevicelink/sdl_ios,APCVSRepo/sdl_ios,FordDev/sdl_ios,davidswi/sdl_ios,davidswi/sdl_ios,duydb2/sdl_ios,kshala-ford/sdl_ios,APCVSRepo/sdl_ios,smartdevicelink/sdl_ios