[GEO] Add optional left/right parameter to GeoJSON

This feature adds an optional orientation parameter to the GeoJSON document and geo_shape mapping enabling users to explicitly define how they want Elasticsearch to interpret vertex ordering.  The default uses the right-hand rule (counterclockwise for outer ring, clockwise for inner ring) complying with OGC Simple Feature Access standards. The parameter can be explicitly specified for an entire index using the geo_shape mapping by adding "orientation":{"left"|"right"|"cw"|"ccw"|"clockwise"|"counterclockwise"} and/or overridden on each insert by adding the same parameter to the GeoJSON document.

closes #8764
hrm. Do you suggest removing all of the @Test annotations and refactor the camel underscore case?  I simply followed the "convention" that was already in place (guess it was arbitrary?).  ShapeBuilderTests uses the same "convention".  I'm good either way, I just need to know if there's a global convention we should be following.