bif files declared with bif_target() are now automatically compiled

in.

No more manual includes to pull them in.

(It doesn't quite work fully automatically yet for some bifs that need
script-level types defined, like the input and logging frameworks.
They still do a manual "@load foo.bif" in their main.bro to get the
order right. It's a bit tricky to fix that and would probably need
splitting main.bro into two parts; not sure that's worth it.)

src/file_analysis/Manager.cc

@@ -60,7 +60,6 @@ void Manager::RegisterAnalyzerComponent(Component* component)
 
 void Manager::InitPostScript()
 	{
-	#include "file_analysis.bif.init.cc"
 	}
 
 void Manager::Terminate()