This commit refactors GeoHashUtils class into a new Geohash utility class located in the ES geo library. The intent is to not only better control what geo methods are whitelisted for painless scripting but to clean up the geo utility API in general.
Replaces intermediate geo objects built by ShapeBuilders with
objects from the libs/geo hierarchy. This should allow us to build
all geo functionality around a single hierarchy.
Follow up for #35320
Adds a set of geo classes to represent geo data in the JDBC driver and
to be used as an intermediate format to pass geo shapes for indexing
and query generation in #35320.
Relates to #35767 and #35320
Igor Motov
Nick Knize
markharwood