Unified flightlog2kml application

• Provide a single flightlog2kml application that can process both Blackbox and OpenTX logs
• Discard OTX logs with minimal (< 64 lines) content

Please remove the bbl2kml and otx2kml application; they are obsolete.
Note that it is possible to process both log types in a single invocation of the application

$ flightlog2kml OTXLog-2021-01-01.csv LOG00042.TXT

Irrationality of version numbers

Just to show that release numbers are figments of one's imagination, here's a point release with lots of new stuff and cleanups.

• New colour gradients (--gradient NAME), red (red), red/green (rdgn), yellow/orange/red (yor)
• Efficiency mode display (requires --efficiency option)
• Major internal cleanups, in preparation for:
  • Unification of bbl2kml and otx2kml into flightlog2kml
  • GUI (don't hold your breath, but it's a possibility)

Please see the front page README; there are some new settings and behaviours.

Add OpenTX log display

Big version bump as there has been a significant functionality increase:

• Added otx2kml to generate KML/Z animations from OpenTX / inav-S.port logs
• Improved fail-safe display (track point icons with central circle, maintaining flight-mode colouring). Improved F/S detection for OTx logs.
• Added summary information for OTx logs (previously done only for BBL)
• Added voltage / current information to track-point popup.
• Internal refactoring to further abstract data structures and interfaces.

0.2.1 Correct Altitude Handling

• Fixed altitude visualisation errors identified in #8
• Improve pop-iup appearance, remove Googles "Directions" link

Thanks to @wilco1967 for his perceptive analysis and data samples

Note this is a bugfix release; the OpenTX log parser will be formally released in a near future feature release, however working code is in the repository and binaries are available in #7

Mission file visualisation

Another version bump as there is new functionality:

• A mission file may be added to the KML/Z, particularly for viewing WP missions
• A standalone mission2kml application is provided
• Mission files may use an optional on-line elevation service to provide above terrain visualisation
• More workarounds / fixes for handling damaged or corrupt Blackbox logs.

BBL with mission

mission2kml, mission altitudes adjusted to terrain base

0.1.1 Improve recognition of legacy nav modes

• Greatly improve the recognition of navigation modes; all versions of inav from pre-1.0 to current development should be supported
• Support ancient BBL with no GPS time stamps
• Don't process logs with no geospatial data

Generate two folders (Flight Mode and RSSI)

• Generate both Flight Mode and RSSI folders
• Provide flight summary (double click on top-level folder)

Add DMS (Degree:Minutes:Seconds) display option

0.0.5

improve resiliance of CSV reading

Add RSSI shading & small improvements

• RSSI shading; range from red (100%) to yellow (0%), 10 step gradient
• Work better with blackbox tools 0.44
• Set default sampling interval to 1s (1000ms) as that's the Google Earth default

Fix typos

• Fix the Fireware / Firmware typo in the log summary