ncd: use NCDInterpBlock and NCDInterpProg to speed up looking up templates and variables
ncd: use NCDInterpBlock and NCDInterpProg to speed up looking up templates and variables

Ernillew/badvpn,Ernillew/badvpn,Ernillew/badvpn,Ernillew/badvpn,Ernillew/badvpn