Covert Arctic-EDS Annual Precip coverage to mm with no decimals.

This PR represents a re-processing and re-ingest of the data for the Arctic-EDS Precipitation Plate.

The key changes include:

removal of the code snippet that converts from mm to inches
retaining a float32 GeoTIFF type
extracting some data at a few select locations to compare against API and client outputs
establishing a new style for the mm units, and adding the style hook to the ingest

The coverage is available on Apollo: annual_precip_totals_mm

The notebook does not need to run, but it should be given a once over in review.

Closes #37 Closes #34

ua-snap / rasdaman-ingest