Make HTMLLogger allocation-free.
Make HTMLLogger allocation-free.

etcimon/vibe.d,DBankov/vibe.d,chalucha/vibe.d,Geod24/vibe.d,redstar/vibe.d,machindertechnologies/vibe.d,etcimon/vibe.d,schuetzm/vibe.d,mfrischknecht/vibe.d,ColdenCullen/vibe.d,gedaiu/vibe.d,AndreyMZ/vibe.d,Mihail-K/vibe.d,yannick/vibe.d,rejectedsoftware/vibe.d