[Opensg-core] [PATCH] Use correct ChangedOrigin value during apply/remote sync

[Carsten N. <car...@gm...>]

	Hello Gerrit, all,

the attached patch changes changedFunctors to receive the change origin 
as an additional argument - so this may break applications that register 
changed functors.
It also makes sure that during a ChangeList::apply or a 
RemoteAspect::receiveSync the changed functions of containers are called 
with ChangedOrigin::Sync instead of the normal ChangedOrigin::Commit.

The motivation for this is that when using GPU skinned characters in a 
cluster where the client renders locally as well, the shader variables 
already have the correct values set, but GPUSkinningAlgorithm marks them 
invalid because it receives a changed notification from the Skeleton. 
Apart from unnecessarily recomputing the values, this produces lots of 
warnings from ShaderVariableAccess::updateSVariable, because the 
variable names are not in the map on the remote side (perhaps that's a 
bug too?).

Comments?

	Cheers,
		Carsten