Reactivate color metric for buildings

[stefanrinderle]

Reactivate color metric for buildings

[Ungolianth]

Quick summary from our call:

• I will remove the Rule "color-per-package", so initially all houses have the same color.
• If it's not too much trouble i will add a few color-options to the Frontend (Depending on how difficult it is, to send options from the Frontend to the model)
• If it's possible the following Rules/Metrics come to mind:
  • Package name (I mean, the rule is already there...)
  • Complexity
  • Number of Methods <--> Number of Attributes
  • Lines of Code <--> Complexity

[stefanrinderle]

Look very good and this can be closed. I created #28 as a future feature story based on this.