Don't use the exporters on Henry, which has multiple instances running

[dannymandel]

We run into problems when trying to start the boxes up with the exporters because they tie back to the box and can really only run one instance on the box. On iSamples Central this doesn't matter because there's only one instance, but on Henry where there are 3 iSB instances, this is a problem. We should disable the exporters on Henry because they are used for monitoring, and we aren't actually using them there.

[dannymandel]

It looks like we could do this with docker compose profiles: https://docs.docker.com/compose/profiles/

[dannymandel]

#75