initial commit (stub readme)
Squashed 'cesium/' content from commit 8749f60

git-subtree-dir: cesium
git-subtree-split: 8749f60a0c920a419e472b715b6bb0229e282edf
Merge commit '8bf44229cfaa667bd0f25dd3e66ef8e81604a317' as 'cesium'
working proof of concept (functional cesium with 2017 track)
Merge branch 'master' of github.com:Frencil/eclipsetracks