Add eslint-plugin-prettier dev dependency
Add eslint-plugin-prettier dev dependency

https://github.com/prettier/eslint-plugin-prettier (MIT)

Change-Id: I056bc1f215ea6a8ea2c94c0d84d45d7bb972304b

knowncitizen/tripleo-ui,knowncitizen/tripleo-ui,knowncitizen/tripleo-ui,knowncitizen/tripleo-ui