Add alpaca connectors and activemq

[birkland]

Adds a single Karaf instance containing all connectors, config to run them, and an activemq instance

To Test

• docker-compose up -d (this should pull in all images, if not do a docker-compose pull first
• Go to http://localhost:8161, which is the ActiveMQ admin console. Click on "Manage ActiveMQ broker". Enter in username admin, pass admin
• Click on the queues tab. You should see all the queues the connectors listen to.
• Now, pick a service (maybe fits) and remember it. Shut everything down docker-compose down -v
• To to the .env file and comment out the env vars for that service. This will disable it.
• Start up docker-compose up -d
• log into ActiveMQ. Look at the queues, and observe the one that corresponds to your service doesn't exist. This proves you can shut them off at will

There isn't much more to test, since services aren't connected. This PR just verifies that camel routes start successfully, connect to the messaging bus and eagerly await messages that never come.

[g7morris]

@birkland I've successfully tested as advised and am now merging this PR. Thanks! Nice work.