Pawel Englert

Make it possible to use build docker image using BuildKit

13

As per Docker release `18.09` it is possible to mount cache (using BuildKit) [explained](https://docs.docker.com/develop/develop-images/build_enhancements/) Example dockerfile ``` # syntax = docker/dockerfile:1.0-experimental #RUN --mount=type=cache,target=/home/gradle/.gradle gradle build ``` However when build such...