MAVExplorer Features to Add

Just an issue to track items I'd like to add to MAVExplorer

- Unit labels to each axis and item graphed (if different than the first like Mission Planner)
- Standardize plotted colors
- Extract/Export portions of a log file by time when you are zoomed in

TLog Plotting:
Only plot one source system at time lest you get this plot
Example filter for the entire file `mavlogdump.py's --source-system=X --source-component=Y`

- FFT Waterfall display
-FFT Log scale graphing and labeling ALA mavfft_isb.py

add save parameters

Start by reviewing MAVExplorer's plotting and log-handling entry points, then read the referenced mavlogdump.py source/component filters and mavfft_isb.py FFT graphing and labeling behavior. The issue is complete only when the requested unit labels, color standardization, time-range export, source filtering, FFT waterfall and log-scale displays, and parameter saving are all defined and implemented.

Written by the indexing model from the issue text.