Build instead of using images

[LukasW1337]

The images on docker isn't really up-to date, and not having the latest ebot changes. Might be me that's just a noob. But spent way too long finding a solution that worked for me. This is just a proposed solution. There should maybe be a image and build options. But i haven't mastered docker-compose enough to do this.

Or maybe we can setup a auto-build on dockerhub, for when the original ebot github gets an update.