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


Origin commit data
------------------
Commit: 2590adfe15
Author: Stefan Seyfried <seife@tuxbox-git.slipkontur.de>
Date: 2010-12-25 (Sat, 25 Dec 2010)

src/sectionsd/dmxapi.cpp

@@ -30,7 +30,11 @@
 #include <unistd.h>        /* close, read */
 #include <dmxapi.h>
 
+#if HAVE_TRIPLEDRAGON
+#include <dmx_td.h>
+#else
 #include <dmx_cs.h>
+#endif
 
 #ifndef DO_NOT_INCLUDE_STUFF_NOT_NEEDED_FOR_SECTIONSD
 bool setfilter(const int fd, const uint16_t pid, const uint8_t filter, const uint8_t mask, const uint32_t  flags)