[6.0][mediacontroller] add methods to MediaControllerServerPlaybackInfo

[6.0][mediacontroller] add methods to MediaControllerServerPlaybackInfo

[acr]
http://suprem.sec.samsung.net/jira/browse/TWDAPI-246

[description]
>> refactor_03 <<
add methods to serverInfoPlaybackInfo interface:
+ sendPlaybackAction
+ sendPlaybackPosition
+ sendShuffleMode
+ sendRepeatState
+ addPlaybackInfoChangeListener
+ removePlaybackInfoChangeListener

[verification]
tested manually in chrome console
tct-mediacontroller-tizen-tests fails with 2 TC:
- MediaControllerServer_iconURI_attribute.html <- has to be modified,
  because attribute iconURI is no longer readonly
- MediaControllerServerInfo_iconURI_attribute.html <- has to be modified,
  because attribute iconURI is no longer readonly

Change-Id: I3b24e1e3d6bfee1ced8d24962a790ae9e71b445a
Signed-off-by: Dawid Juszczak <d.juszczak@samsung.com>