REMA Dem Integration + Antimeridian Handling

What's Changed

• update readme with nci example by @abradley60 in #10
• Add download test for cop dem by @caitlinadams in #9
• Bugfix/antimeridian geoid by @abradley60 in #11
• add missing parameter for AM by @abradley60 in #12
• Bugfix/geoidoverlaperror by @caitlinadams in #13
• AM merge fix by @abradley60 in #14
• fix for missing data in REMA query by @arcisad in #16
• Upgrade/rema by @abradley60 in #17

Full Changelog: v0.11...v0.2.0