Do not look up cdf:Value by ID brute-force in HTML reports and guides
Do not look up cdf:Value by ID brute-force in HTML reports and guides

Instead, make a map that maps benchmark/@id and the value/@id to the
element.

This saves roughly 50% of the time generating guides...

new: 0m0.506s
old: 0m0.921s

ybznek/openscap,redhatrises/openscap,OpenSCAP/openscap,mpreisler/openscap,ybznek/openscap,jan-cerny/openscap,Hexadorsimal/openscap,jan-cerny/openscap,mpreisler/openscap,redhatrises/openscap,jan-cerny/openscap,jan-cerny/openscap,jan-cerny/openscap,Hexadorsimal/openscap,Hexadorsimal/openscap,OpenSCAP/openscap,redhatrises/openscap,OpenSCAP/openscap,OpenSCAP/openscap,Hexadorsimal/openscap,jan-cerny/openscap,redhatrises/openscap,OpenSCAP/openscap,redhatrises/openscap,mpreisler/openscap,ybznek/openscap,mpreisler/openscap,ybznek/openscap,ybznek/openscap,mpreisler/openscap,ybznek/openscap,Hexadorsimal/openscap,Hexadorsimal/openscap,redhatrises/openscap,mpreisler/openscap,OpenSCAP/openscap