Updated gqueries for industry CHP chart

The updated industry CHP chart distinguishes between centrally produced heat, CHP heat and other heat. In this way, users can easily see what amount of CHPs

Old chart:
![energy_transition_model_-_your_free__independent__comprehensive__fact-based_scenario_builder_](https://f.cloud.github.com/assets/4319656/1899663/fe533988-7c3f-11e3-8ace-3294f3420821.jpg)

New chart:
![energy_transition_model_-_your_free__independent__comprehensive__fact-based_scenario_builder_-2](https://f.cloud.github.com/assets/4319656/1899686/89435cf8-7c40-11e3-9736-c31bc1376804.jpg)