Moving Lines: Map projection handling and new aviation routes planning.

This is the next release of the moving lines research flight planning software. This version introduces enhanced handling of projections, especially for loaded images, a new method for identifying image corners, plotting of North Atlantic and Pacific Oceanic Aviation routes, and other numerous smaller changes, such as:
- bug fix for plotting in multiple different projections, while keeping the great circle lines.
- New feature - North Atlantic and Pacific-Oceanic routes, based on flightplandb API.
- New feature - modified the image_corners.json file format to handle different types of projections from input images.
- Bug fixes to MSS Profile init time checking.
- Added projection handling in MSS models.
- Updated the labels.txt for arctic locations that may be important to NURTURE.
- Added an initial try at a parameterized NASA 777 flight characteristics.
- Changed defaults of NURTURE projection to lamber azimuthal equal area.