added API for querying organization charts
added API for querying organization charts

kendrick-k/datawrapper,grepman/datawrapper,rubensfernando/datawrapper,datafunk/datawrapper,rubensfernando/datawrapper,washingtonpost/datawrapper,motherjones/datawrapper,elaOnMars/datawrapper,rubensfernando/datawrapper,kendrick-k/datawrapper,devinit/datawrapper,plusgut/datawrapper,motherjones/datawrapper,datafunk/datawrapper,grepman/datawrapper,datafunk/datawrapper,kendrick-k/datawrapper,washingtonpost/datawrapper,ThuyNTran/datawrapper,elaOnMars/datawrapper,washingtonpost/datawrapper,kendrick-k/datawrapper,qqming113/datawrapper,grepman/datawrapper,plusgut/datawrapper,rubensfernando/datawrapper,rubensfernando/datawrapper,qqming113/datawrapper,elaOnMars/datawrapper,motherjones/datawrapper,elaOnMars/datawrapper,devinit/datawrapper,washingtonpost/datawrapper,devinit/datawrapper,datafunk/datawrapper,ThuyNTran/datawrapper,robmcloughlin/Insights,plusgut/datawrapper,qqming113/datawrapper,datafunk/datawrapper,devinit/datawrapper,motherjones/datawrapper,datafunk/datawrapper,devinit/datawrapper,washingtonpost/datawrapper,ThuyNTran/datawrapper,robmcloughlin/Insights,kendrick-k/datawrapper,robmcloughlin/Insights,robmcloughlin/Insights,washingtonpost/datawrapper,grepman/datawrapper,plusgut/datawrapper,grepman/datawrapper,qqming113/datawrapper,qqming113/datawrapper,ThuyNTran/datawrapper,devinit/datawrapper,motherjones/datawrapper,robmcloughlin/Insights,qqming113/datawrapper,motherjones/datawrapper,grepman/datawrapper,kendrick-k/datawrapper,elaOnMars/datawrapper,ThuyNTran/datawrapper,ThuyNTran/datawrapper,elaOnMars/datawrapper