* refactor ekf analysis part 1: move plotting to functions
* add plot_check_flags plot function
* put plots in seperate file
* use object-oriented programming for plotting
* move functions for post processing and pdf report creation to new files
* add in_air_detector and description as a csv file
* refactor metrics and checks into separate functions
* refactor metrics into seperate file, seperate plotting
* ecl-ekf tools: re-structure folder and move results table generation
* ecl-ekf-tool: fix imports and test_results_table
* ecl-ekf tools: bugfix output observer tracking error plot
* ecl-ekf-tools: update batch processing to new api, fix exception handling
* ecl-ekf-tools: use correct in_air_detector
* ecl-ekf-tools: rename csv file containing the bare test results table
* ecl-tools: refactor for improving readability
* ecl-ekf tools: small plotting bugfixes
* ecl-ekf tools: small bugfixes in_air time, on_ground_trans, filenames
* ecl-ekf-tools: fix amber metric bug
* ecl-ekf-tools: remove custom function in inairdetector
* ecl-ekf-tools: remove import of pandas
* ecl-ekf-tools: add python interpreter to the script start
* ecl-ekf-tools pdf_report: fix python interpreter line
* px4-dev-ros-kinetic: update container tag to 2019-02-13
* ecl-ekf-tools python interpreter line: call python3 bin directly
* ecl-ekf-tools: change airtime from namedtuple to class for python 3.5
* ecl-ekf-tools: update docker image px4-dev-ros-kinetic
* ecl-ekf-tools: fix memory leak by correctly closing matplotlib figures
Add assessment of IMU bias and mag field estimation
Reduce warning false positives by adjusting thresholds and eliminating use of peak value plots for output observer monitoring
Clear each figure after saving to reduce memory usage