Feature/stream writer add background images#1016

Merged

guyonroche merged 3 commits intoexceljs:masterfrom

brunoargolo:feature/stream-writer-add-background-images

Nov 4, 2019

Commits on Aug 4, 2019

Introducing comments for the Stream Writer
brunoargolo
committed

Commits on Nov 2, 2019

Merge branch 'master' of https://github.com/exceljs/exceljs
brunoargolo
committed

Commits on Nov 3, 2019

Added background images, includes test
brunoargolo
committed