Added mapping from node type to HTML section headers so the htmlview can scroll to the section headers when the user clicks the corresponding node. 
Added mapping from node type to HTML section headers so the htmlview can
scroll to the section headers when the user clicks the corresponding
node. 
STIXProject/stix-viz,STIXProject/stix-viz,txmoe/STIX,txmoe/STIX,STIXProject/stix-viz,txmoe/STIX