Added basic detector script
Added basic detection/publish functionality
Added changes to basic_detector.py
Added comments, changed topic names in prep for making node generic
Added vision_opencv to package dependencies
Added gitignore for backups and xml
Added output when face is detected
Added output topic for center of detected face (convenience)
Clarified comments for basic_detector node
Changed to class based approach
Added basic_renderer node for testing
Added ROI and center point rendering to basic_renderer
Detector now uses profile filter for increase in robustness
Clarified comments in basic_detector, added example launch file
Merge pull request #2 from SchwalmDLuke/cv_test

Pull cv_test into master