add more arg options for julius.launch

[k-okada]

<launch>
  <include file="/home/k-okada/catkin_ws/ws_audio/jsk_3rdparty/julius_ros/launch/julius.launch">
    <arg name="device" default="plughw:2,0"/>
    <arg name="sample_rate" default="8000"/>
    <arg name="format" default="wave"/>
    <arg name="channels" default="2"/>
    <arg name="depth" default="24"/>
    <arg name="julius_args" value="-debug" />
    <arg name="julius_output" value="screen" />
  </include>
</launch>

cc: @yamaguchi708, @iory

• add julius_args
• add args for device,channels,depth,sample_rate,format

[furushchev]

Just out of curiosity, does julius work with other than wave mono 16bit 16kHz?
The manual says it works only with this settings.
https://julius.osdn.jp/juliusbook/ja/desc_adin.html