Currently the package relies on the Buffer object to be present, which isn't always the case.
While browserify is listed as a dependency that can provide Buffer, it is not used here.
Explicitly importing the package fixes this.
EDIT: After checking online more, it seems perhaps another solution should be up to the consumer of the package to provide the polyfill. If that's the case I'll close the PR
Currently the package relies on the Buffer object to be present, which isn't always the case. While browserify is listed as a dependency that can provide Buffer, it is not used here. Explicitly importing the package fixes this.