[bindings] Started Topology and BaseMeshTopology bindings

[psomers3]

Hopefully this is a better way to fix #113. I don't have the time right now to fill the objects with their class-specific properties/methods, but the groundwork is now there for someone to add them as needed.

The following now works in a python forcefield:

    def init(self):
        self.topology = self.getContext().getTopology()
        self.topology = self.getContext().getMeshTopology()
        self.topology = self.getContext().getMeshTopologyLink(Sofa.Core.BaseContext.SearchUp)
        print(self.topology.edges.array())

[jnbrunet]

Hey @psomers3 ,

Indeed, this is a much better fix !

I don't have the time right now to fill the objects with their class-specific properties/methods

No one has. It won't be possible to bind every properties or methods for every SOFA components. But at some point, if more people come in and add the bindings they need, we will get a not so bad coverage. By adding these python components, you just made this task easier, while fixing your issue, so very nice :)

+1 for me

@hugtalbot @fredroy @guparan did one of you guys wanted to take a quick look?

[fredroy]

Looks fine to me 👍