Add Testing Infrastructure

[Shinmera]

In order to fully replicate Xach's work, we also still require a way to test loading every individual system in a dist at its current state and gather a report based on that. Specifically we need to be able to:

• Spin up a new process for every project
• Manage the status of that process
• Run multiple processes at once without ASDF cache interference
• Gather the relevant report if it fails to build
• Publish those failure reports in new templates

Nice extras would be:

• Linking to reports from the project page for discovery
• Testing with multiple implementations and OSs
• Automated notifications on github/email/whatever we can