QuantumSystemTest

Quantum System Test seeks to test the whole of Quantum to confirm functionality, performance, and behavior in various unexpected scenarios.

Here are a few things we should be thinking about for system test:
 * Quantum operating as part of a cloud with other "interface services" like nova.
 * Performance
 * Behavior in larger multi-node environments (unit tests often just run on a single node deployment)
 * Behavior in unexpected or failure scenarios.
 * Behavior across different configuration options (e.g., quantum plugins, hypervisor backends, database types, etc)
 * System security in the face of malicious users.

Handling system test will likely require access to a lab environment to be able to setup non-trivial topologies.