Add IETF RFC 4175 Payload Header bitstream writer
Add IETF RFC 4175 Payload Header bitstream writer

Signed-off-by: Rostislav Pehlivanov <0b6f0bad7857f17bbc3959ee03b666f7845f0261@obe.tv>

theambient/bitstream_c,gfto/bitstream,kierank/bitstream,gfto/bitstream,kierank/bitstream,theambient/bitstream_c