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/driver/stream2file.cpp

@@ -54,8 +54,13 @@
 #include <signal.h>
 #include <libgen.h>
 
-#include <record_cs.h>
 #include <driver/vfd.h>
+#if HAVE_COOL_HARDWARE
+#include <record_cs.h>
+#endif
+#if HAVE_TRIPLEDRAGON
+#include <record_td.h>
+#endif
 #include <zapit/cam.h>
 #include <zapit/channel.h>