Controller Interface too fractured

After discussion with @arauschert, we came to the conclusion that the interface for activation and deactivation could need a refurbishment.

Reasoning: Activation of both domains (lateral and longitudinal) should be executed in a single command, allowing the environment simulator to validate if a controller is able handle the request.

Example:

• A controller only supports a both domains.

Before:

• Mantle always sends two commands, such as ActivateLongitudinal and ActivateLateral Even if this happens within a single time step, it is harder quit with "unsupported mode"

After

• Mantle sends single command ChangeActivationState(true, true); // everything fine
• Mantle sends single command ChangeActivationState(true, false); // not supported
• Mantle sends single command ChangeActivationState(false, true); // not supported