support Dagger 2.x style APT generated bytecode to avoid reflection or proxying for faster injection

this is particularly useful if you wanted to do per-request/per-message/per-operation injection.

The Dagger approach to DI lets you code generate the DI wiring code at compile time avoiding any reflection etc. The primary use case driving Dagger is performance on Android but I can see that being generically useful on all Java platforms.