Update CHANGELOG.md
Update CHANGELOG.md

Updated changelog.md with dub init improvements.
schuetzm/dub,Abscissa/dub,nazriel/dub,dreamsxin/dub,xentec/dub,D-Programming-Language/dub,grogancolin/dub,Abscissa/dub-data-mod,Geod24/dub,gedaiu/dub,alexeibs/dub,rjframe/dub,y12uc231/dub,jeanbaptistelab/dub,jelmansouri/dub,p0nce/dub,Flamaros/dub