add partial support for filters, theoretical event support, more work on subscription interface

far too many things in this commit, unfortunately I cannot finish the work without async support, so I think it is better to merge as-is so we avoid big merge effort later
The event api might also have to be changed later, it is far from perfect.
I checked that everything compiles and tests work
I obviously forgot to check in those files... I was sure I did....
Fixed


On 1 August 2014 20:57, Alexander Rykovanov <notifications@github.com>
wrote:

> In include/opc/ua/server/address_space.h:
>
> > @@ -12,6 +12,7 @@
> >
> >  #include <opc/ua/view.h>
> >  #include <opc/ua/attributes.h>
> > +#include <opc/ua/event.h>
>
> Where is this file placed?
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/FreeOpcUa/freeopcua/pull/9/files#r15712858>.
>