Usage: ftinitupload clientftfid={clientFileTransferID} name={filePath} 
        cid={channelID} cpw={channelPassword} size={fileSize} overwrite={1|0} 
	    resume={1|0}

Initializes a file transfer upload. clientftfid is an arbitrary ID to identify 
the file transfer on client-side. On success, the server generates a new ftkey 
which is required to start uploading the file through TeamSpeak 3's file 
transfer interface.

Example:
   ftinitupload clientftfid=1 name=\/image.iso cid=5 cpw= size=673460224 
    overwrite=1 resume=0
   clientftfid=1 serverftfid=6 ftkey=itRNdsIOvcBiBg\/Xj4Ge51ZSrsShHuid port=...
   error id=0 msg=ok