Continue png writing.

src/core/streams/BitStream.cpp

@@ -28,6 +28,15 @@ void BitStream::write(uint32_t data)
     }
 }
 
+void BitStream::writeWord(uint16_t data)
+{
+    unsigned num_bytes = sizeof(uint16_t);
+    for(unsigned idx=0; idx<num_bytes;idx++)
+    {
+        writeByte(ByteUtils::getByteN(data, idx));
+    }
+}
+
 int BitStream::getCurrentByteOffset() const
 {
     return mByteOffset;