AX.100 Mode 6: Make available the AX.25 header too

Until now, the Mode 6 decoder produced only the RS codeblock, becasue both the RS and the CRC32-C ensuring the validity of the frame. However, the AX.25 header holds vital information that can be used to descriminate between nearby spacecrafts using the same modem. Now the decoder also makes available this headder, but users should take into consideration that errors may exists on these data.

Many will argue that the AX.25 CRC could be used too, but this defeats the purpose of using a FEC.

Signed-off-by: Manolis Surligas surligas@gmail.com