rfx_process_message_sync:
- simplified the check if the header messages got processed
rfx_process_message_tileset:
- ObjectPool_Take result was not checked
- fail if TS_RFX_TILE block type is not CBT_TILE
- CreateThreadpoolWork result was not checked
- post decoding loop code segfaulted in error case
rfx_decoder_tile_new:
- missing malloc check
rfx_message_free:
- segfault protection
rfx_write_message_tileset:
- segfault protection