Reactor objects not parsed: disconnected networks

[NicolasGensollen]

Looking into #96, I realized that the IEEE 8500 has a Reactor object connecting the SourceBus to the rest of the network:

! Put Source Impedance in as a Reactor
New Reactor.HVMV_Sub_HSB  bus1=SourceBus  bus2=HVMV_Sub_HSB  r=0  x=(1.051 0.88 0.001 3 * - - 115 12.47 / sqr *) normamps=400  emergamps=400

This object is currently not parsed in DiTTo because we don't have Reactor objects in the models. So the output network is disconnected from the SourceBus...

@tarekelgindy, do you have a preference for the way we deal with this? We could always parse this as a Line object to get connectivity if we don't want to add a new object to the models...

[NicolasGensollen]

Once #107 is merged we need to update the parsers for the formats that support reactors.

• [ ] OpenDSS reader
• [ ] OpenDSS writer
• [ ] CYME reader
• [ ] CYME writer
• [ ] GridlabD reader (not sure)
• [ ] GridlabD writer (not sure)