Fix some includes all over the place

Make include-what-you-use happy with some files in source and fix what
needs to be fixed.

Add markers to precompiled.h header includes to avoid
include-what-you-use wanting them to be removed.

Ref: #8086
Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>

source/scriptinterface/ScriptInterface.h

@@ -19,7 +19,6 @@
 #define INCLUDED_SCRIPTINTERFACE
 
 #include "lib/code_annotation.h"
-#include "lib/posix/posix_types.h"
 #include "lib/types.h"
 #include "ps/Errors.h"
 #include "scriptinterface/ScriptConversions.h"
@@ -43,7 +42,6 @@
 class JSObject;
 class Path;
 class ScriptContext;
-namespace JS { class HandleValueArray; }
 namespace Script { class ModuleLoader; }
 namespace boost { namespace random { class rand48; } }
 struct JSClass;