add generic dispatcher headers for frontend etc

add generic audio, video and demux headers in zapit/include (TODO: put them
into a better place, or put wrappers into lib directories) that automatically
dispatch to the hardware specific functions and use them in the code

git-svn-id: file:///home/bas/coolstream_public_svn/THIRDPARTY/applications/neutrino-experimental@962 e54a6e83-5905-42d5-8d5c-058d10e6a962

src/sectionsd/dmx.h

@@ -28,7 +28,13 @@
 #include <stdint.h>
 #include <sys/types.h>
 #include <vector>
+#include <config.h>
+#if HAVE_COOL_HARDWARE
 #include <dmx_cs.h>
+#endif
+#if HAVE_TRIPLEDRAGON
+#include <dmx_td.h>
+#endif
 
 typedef uint64_t sections_id_t;
 typedef unsigned char version_number_t;