examples in Applications.SolarThermalSystems not working

[thorade]

Probably due to ibpsa/modelica-ibpsa#779
That PR shows a conversion script that we forgot to apply to the library.
E.g. HeaterCooler_T has been renamed to PrescribedOutlet and so...

That change was then merged into our library by #96

[thorade]

Examples for conversion scripts are here:
https://github.com/lbl-srg/modelica-buildings/tree/master/Buildings/Resources/Scripts/Dymola
These can be copied, then change Buildings to BuildingSystems and save the file e.g. as Convert.mos

Once you have a Convert.mos script, follow these steps to apply it:

• Open a new Dymola Window
• Add the Script toolbar (Window, Tools, Script)
• Open the Convert.mos script and run it
• NOW load the BuildingSystems library
• A message window as shown below should appear
• Use "Check Model", then save all, then commit only the changes you really want (usually the ones listed in the message window).

[thorade]

@ainderfurth will have a look at the examples in
Technologies.DistrictHeatingNetworks.Examples
(also related: #78)

[ainderfurth]

After renaming the components, the examples work again..