Bug 568296: [RJ-Data] Simplify use of raw/byte array data

  - Add RRawStore.toRawArray returning a primitive byte array
  - Add DefaultRObjectFactory.createRawVector(byte[])
  - Add functions to RDataUtils similar to the other data types

Change-Id: I4eb08a22d0c8ed5a66385a09c5707e1ad57c5c17
8 files changed