Guice: Proof of concept impl for decoder dependencies.

* Testwise implementation of a decoding mechanism that is intended to
  replace the current dependency declaration and resolution mechanism
  with the Guice framework. This step should allow to reduce a lot of
  boilerplate code and ease maintenance.
* The mechanism is is based on the "Providers" and "@Provide"
  annotation in combination with "@Inject" fields that declare the
  input dependencies.
* TODOs:
** Switch all decoders to the new mechanism.
** Reduce the mountain of abstraction code that is not really required
   to configure the DSE.
** Implement a service mechanism that binds the guice modules belonging
   to an exploration feature.

Signed-off-by: Alexander Diewald <diewald@fortiss.org>