Updating encoding packet header
Merge branch 'feature/encoder' of github.com:olanmatt/orq into feature/encoder

* 'feature/encoder' of github.com:olanmatt/orq:
  Add header file for array_source_block_encoder.
  Add header file for array_data_encoder.
  Add header file for padded_byte_array.
  Add header file for encoding_symbol.
  Add header file for array_utils.