Budget infra post doc

So this is a rather large PR. Its also very much a work in progress. This merges some work to remove Budget dependency on a document since in PD we don't use the document. It also adds in the basic KRAD framework and fixes JPA errors that prevented persisting or retrieval of PDBudgetExt. All further non-mock related Budget work is dependent on this PR being merged so larger changes due to comments will likely be pushed into future work. It is also important, so try to review as soon as you can.
Oh my response was meant to indicate that we will. CommonService is used in a fair number of places but once we get the PDBudget and AwardBudget more separate it should be easier to remove. And yes, there is a LOT of work still to do and this is one place we will improve things.