samsungremote.php added, samsung sendkey added to functions.php.

samsungremote.php is only for testing. But its working already!

example:
http://localhost/home-automation/samsungremote.php?func=sendKey&key=CHUP
or

http://localhost/home-automation/samsungremote.php?func=sendKey&key=CHDOWN
Merge pull request #15 from marlon82/Marlon

samsungremote.php added, samsung sendkey added to functions.php.