====== getRoleIcon ======


  * Parameters & Types:
    * playerid: number player ID
  * Return value and type:
     * ErrorCode.OK
     * iconid: the iconID of the number role
  * The main function of this method is to obtain the iconID of the character type icon
  * Specific use cases are as follows:

	local result,iconid = Customui:getRoleIcon(playerid)