d rewrite filefilter to use new accumulator methods

d edit vif to be buffered
d add property read/write to vif
d rewrite displayfilter to use contentfilter
d write PropAccumulator
d write a PropFilter capable of displaying cursors

- unify object return types, e.g. error return types should be 
    CESError_t

- write a baseclass with the following:
   char * ObjectName
   foo    ObjextIdentity // from  a magic hat

---------------------------------------------
d add sizing/resizing methods to accumulator
i rewrite method for sizing accumulator.
- add save method to filefilter?
d create Content filter

? editor test

- create keyboard object
- write code for a window 
  - redo vif to inherite from a base class

- make a filter manager
- add information to filters for plugability

- demo as editor level 1
 - add command line options.


----- Questions -----------

d should the accumulator handle reads and writes? (probably)
-