wx_rosout 2nd pass (ros-pkg ticket #317)

[hershwg]

Need a to do a second pass on wx_rosout:

• table-based
• generic filter instead of just per-node
• fast

trac data:

• Owner: jfaust
• Reporter: jfaust
• Reported at: Wed Sep 17 12:04:31 2008
• URL: http://code.ros.org/trac/ros-pkg/ticket/317