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

lib/libdvbsub/dvbsub.cpp

@@ -1,6 +1,7 @@
 // Workaround for C++
 #define __STDC_CONSTANT_MACROS
 
+#include <config.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <sys/ioctl.h>
@@ -11,7 +12,7 @@
 
 #include <cerrno>
 
-#include <dmx_cs.h>
+#include <zapit/include/dmx.h>
 
 #include "Debug.hpp"
 #include "PacketQueue.hpp"