Release Notes for v1.0.7

Version description of the v1.0.7 release of ICESat-2 SlideRule

Resolved background density calculation issue: sliderule#2
Resolved background rate interpolation issue: sliderule#3
Resolved spacecraft velocity calculation issue: sliderule#5
Resolved along-track distance calculation issue: sliderule#73
ATL06-SR segment IDs are calculated by finding the center of the segment and using the segment ID of the closest ATL06 segment: sliderule#72
Resolved consul exit functionality regression: devops#42
Added health checking for SlideRule server nodes, with automatic restarts: devops#43
- rate of once per minute
- 3 retries: 5 seconds, 10 seconds, 30 seconds
- unhealthy: connection failure, or health endpoint returns false

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