Inspector: Move everything into the Inspector namespace

DevTools/Inspector/RemoteObjectPropertyModel.cpp

@@ -28,6 +28,8 @@
 #include "RemoteObject.h"
 #include "RemoteProcess.h"
 
+namespace Inspector {
+
 RemoteObjectPropertyModel::RemoteObjectPropertyModel(RemoteObject& object)
     : m_object(object)
 {
@@ -235,3 +237,5 @@ const JsonPath* RemoteObjectPropertyModel::find_cached_path(const Vector<JsonPat
 
     return nullptr;
 }
+
+}