A suggestion for restructuring how temperature is handled. Now there is a comptype networkWithTemperature, with an attribute temperature.

This can be used when there will be some cells/channel/synapses in the nework with a requirement for temperature,
e.g.

<network id="net1" type="networkWithTemperature" temperature = "22 degC">
         <population ...>
</network>

in NeuroML2CoreTypes/LEMS_NML2_Ex10_Q10.xml
Adding example showing network embedded in a tissue which exposes the global temperature
Merge pull request #20 from NeuroML/temperatureRestructure

Temperature restructure