Can you support custom className prefix？

[599316527]

I'm using VueWaterfall in my component which will be built as a SDK which will be used in other projects.

ClassName vue-waterfall of SDK may be conflict with other vue-waterfall of the page which includes my SDK because the page may include its own VueWaterfall and apply some custom css rules to it.

If VueWaterfall supports custom className prefix (eg: my-custom-prefix-vue-waterfal) by recieving prefix string as prop or reading from the environment variable, the issue will be solved.