timeseries generation at given geometry and time period, fixed cloud masking and mosaicking

What's Changed

• working on quality mask by @gregory-halverson-jpl in #7
• working toward subset loading by @gregory-halverson-jpl in #8
• encapsulating GLT by @gregory-halverson-jpl in #9
• subset extraction with quality mask working by @gregory-halverson-jpl in #10
• King's Canyon snow time-series by @gregory-halverson-jpl in #11
• timeseries generation at given geometry and time period, fixed cloud masking and mosaicking by @gregory-halverson in #12

Full Changelog: v1.0.1...v1.1.0