PHPCI Refactor

[dancryer]

Contribution Type: refactor

This pull request affects the following areas:

• [x] Front-End
• [x] Builder
• [x] Build Plugins

In raising this pull request, I confirm the following (please check boxes):

• [x] I have read and understood the contributing guidelines?
• [x] I have checked that another pull request for this purpose does not exist.
• [x] I have considered, and confirmed that this submission will be valuable to others.
• [ ] I have created or updated the relevant documentation for this change on the PHPCI Wiki.
• [ ] Do the PHPCI tests pass?

Detailed description of change:

• [x] Migrate b8framework v1.x into PHPCI\Framework.
• [x] Remove unnecessary code from PHPCI\Framework.
• [ ] Switch to short style arrays [].
• [ ] Implement parameter and return types (PHP7 style).
• [ ] Reduce complexity of Builder.
• [ ] Make worker launch a new instance of PHPCI to handle each build.
• [ ] Remove daemon mode.
• [x] Config update (remove b8 section).
• [ ] Split out webhooks into their own separate controllers.
• [ ] Give controllers the same functionality as in Octo (return json, redirect, etc)
• [ ] Switch to nikic\fastroute?
• [ ] Switch to Twig templates?
• [x] Switch to b8\Database?