Build: Prefix directory to include of enums.hpp

This fixes a build problem due to the reduced include search paths
introduced by my recent changes.  Also fix a couple of other
includes to use angle brackets.

bindings/cxx/include/libsigrokcxx/libsigrokcxx.hpp

@@ -70,7 +70,7 @@ raised, which provides access to the error code and description.
 #ifndef LIBSIGROKCXX_HPP
 #define LIBSIGROKCXX_HPP
 
-#include "libsigrok/libsigrok.h"
+#include <libsigrok/libsigrok.h>
 #include <glibmm.h>
 
 #include <stdexcept>
@@ -1047,7 +1047,7 @@ protected:
 	const string _name;
 };
 
-#include "enums.hpp"
+#include <libsigrokcxx/enums.hpp>
 
 }
 

bindings/swig/classes.i

@@ -20,7 +20,7 @@
 #pragma SWIG nowarn=325,401
 
 %{
-#include "libsigrokcxx/libsigrokcxx.hpp"
+#include <libsigrokcxx/libsigrokcxx.hpp>
 using namespace std;
 %}
 
@@ -271,10 +271,10 @@ typedef std::map<const sigrok::ConfigKey *, Glib::VariantBase>
 %attribute(sigrok::Analog, const sigrok::Unit *, unit, unit);
 %attributevector(Analog, std::vector<const sigrok::QuantityFlag *>, mq_flags, mq_flags);
 
-%include "libsigrokcxx/libsigrokcxx.hpp"
+%include <libsigrokcxx/libsigrokcxx.hpp>
 
 %include "enums.i"
 
 namespace sigrok {
-%include "libsigrokcxx/enums.hpp"
+%include <libsigrokcxx/enums.hpp>
 }