SaVi satellite constellation visualizer savi-dev

Minor speedup - don't send comments down pipe to Geomview.
We probably need a verbose flag to control this.
Also look into what happens when we run geomview -run ./savi -fake-geomview
as output is unusual - probably because some init code is skipped.

Noting how to use -fake-geomview flag.

Adding fisheye menu locations in oceans. Arctic Ocean is still missing -
many other places there than Spitsbergen and Svalbard.

fisheye risk marker colours should be less hardcoded.

Hiding parallels spacing unless showing it is turned on.
Same trick as changing coverage shades in that window.

script modifications - turning off overlapping orbital ring drawing for a slight speedup.

minor typo fix.

Minor tweak to fisheye circles shadex when medium/small.

Tweaking Clarke script - urls, longstanding typo.

ispelling out GPS in full in menu item.