Automate the base case e2e infrastructure creation

[MSalopek]

Create a minimal e2e setup with:

• one provider node
• one consumer node
• one relayer
• one config file + possibly a genesis template to speed up the bootstrapping

Allow this minimal infrastructure to run:

• in a docker container
• locally

Additional:

• See how gm fits into this and if it can be used

[MSalopek]

Instead of gm we can commit the scripts we're using locally. We can have a scripts folder in the repo.

We can add this instead: #901

@mpoke