Reworked class scanner & auto-injected classes

Changelog:

• Reworked class scanner (@devrawr)
• Tested service functionality on a production environment (@GrowlyX)
• Setup a JUnit testing environment (@GrowlyX)
• Create methods to automatically create & inject into a class, with optional constructor parameters (@GrowlyX)

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Full Changelog: 0.1.1...0.1.2

First release

0.1.1

Make use of FlavorBinder#scope when injecting into fields