feat(tools): First shot at the visualization tool

What is working:
- Reading data from file or STDIN
- Filter by sensor
- Connection to matplotlib

What is not working:
- Performance is abysmal
- Layouting of subplots needs to be improved
- All dimensions of each sensor should go in the same plot

For testing use the following command: python ./SensorPlot.py -i test/sample0.txt 1
Merge pull request #29 from psycholold/tmp-visualization-tool-first-shot

feat(tools): First shot at the visualization tool
Keeping the sample0.txt in the merge seems a bit unnecessary, but we'll keep it for now.