Update building.md
Update building.md

Add JDK dependency.
Note that the windows terminal needs to be elevated.
ek9852/gapid,baldwinn860/gapid,google/agi,eternity74/gapid,google/agi,google/gapid,Qining/gapid,ben-clayton/gapid,ben-clayton/gapid,pmuetschard/gapid,Qining/gapid,baldwinn860/gapid,baldwinn860/gapid,ben-clayton/gapid,pmuetschard/gapid,pmuetschard/gapid,dsrbecky/gapid,pmuetschard/gapid,google/gapid,eternity74/gapid,ben-clayton/gapid,ek9852/gapid,ek9852/gapid,baldwinn860/gapid,eternity74/gapid,google/agi,google/gapid,ek9852/gapid,google/gapid,google/gapid,google/agi,pmuetschard/gapid,eternity74/gapid,baldwinn860/gapid,baldwinn860/gapid,dsrbecky/gapid,Qining/gapid,pmuetschard/gapid,ek9852/gapid,dsrbecky/gapid,google/gapid,ben-clayton/gapid,baldwinn860/gapid,ben-clayton/gapid,ianthehat/gapid,ianthehat/gapid,ek9852/gapid,dsrbecky/gapid,dsrbecky/gapid,ianthehat/gapid,google/agi,pmuetschard/gapid,ianthehat/gapid,Qining/gapid,ben-clayton/gapid,pmuetschard/gapid,eternity74/gapid,google/agi,ianthehat/gapid,google/agi,google/gapid,Qining/gapid,dsrbecky/gapid,ianthehat/gapid,ek9852/gapid,dsrbecky/gapid,Qining/gapid,google/gapid,dsrbecky/gapid,google/agi,Qining/gapid,eternity74/gapid,Qining/gapid,baldwinn860/gapid,eternity74/gapid,ek9852/gapid,ben-clayton/gapid,ianthehat/gapid