Update geocoder interface to reflect that geocoders can send back results that destinations of type Rectangle or Cartesian3
Update geocoder interface to reflect that geocoders can send back results that destinations of type Rectangle or Cartesian3

jason-crow/cesium,kaktus40/cesium,jasonbeverage/cesium,likangning93/cesium,CesiumGS/cesium,denverpierce/cesium,aelatgt/cesium,josh-bernstein/cesium,esraerik/cesium,omh1280/cesium,likangning93/cesium,kiselev-dv/cesium,hodbauer/cesium,omh1280/cesium,jason-crow/cesium,kaktus40/cesium,ggetz/cesium,AnalyticalGraphicsInc/cesium,likangning93/cesium,omh1280/cesium,geoscan/cesium,NaderCHASER/cesium,soceur/cesium,CesiumGS/cesium,aelatgt/cesium,geoscan/cesium,YonatanKra/cesium,josh-bernstein/cesium,emackey/cesium,NaderCHASER/cesium,denverpierce/cesium,jason-crow/cesium,kiselev-dv/cesium,oterral/cesium,emackey/cesium,hodbauer/cesium,wallw-bits/cesium,wallw-bits/cesium,oterral/cesium,kiselev-dv/cesium,jasonbeverage/cesium,YonatanKra/cesium,soceur/cesium,emackey/cesium,aelatgt/cesium,AnimatedRNG/cesium,aelatgt/cesium,CesiumGS/cesium,wallw-bits/cesium,soceur/cesium,AnimatedRNG/cesium,esraerik/cesium,wallw-bits/cesium,ggetz/cesium,NaderCHASER/cesium,omh1280/cesium,AnimatedRNG/cesium,progsung/cesium,denverpierce/cesium,YonatanKra/cesium,oterral/cesium,CesiumGS/cesium,esraerik/cesium,hodbauer/cesium,ggetz/cesium,jason-crow/cesium,YonatanKra/cesium,progsung/cesium,emackey/cesium,likangning93/cesium,kiselev-dv/cesium,AnimatedRNG/cesium,denverpierce/cesium,AnalyticalGraphicsInc/cesium,likangning93/cesium,esraerik/cesium,CesiumGS/cesium,ggetz/cesium