Define what the EnvironmentFactory interface would look like.

[jonpugh]

The common methods for an environment as I see it are:

• init: Get the source code, prepare the configs.
• enable: turn on the environment.
• disable: turn off the environment.
• remove: Destroy the environment, configs, files, databases, etc.
• clone: Recreate the environment with a new name & URL.

Discuss!

[jonpugh]

@EclipseGc is going to be working on something for this at https://github.com/terra-ops/TerraCore

[jonpugh]

related : #76