Move generated functions

[adeas31]

At the moment, we generate code like:

void functionDAE(...) {
  ...;
}

And call it from the runtime:

functionDAE(...);

This is a problem for FMUs since there are now two functions available with the name functionDAE. In order to make the runtime work properly, we need to move this code into a struct and from the run-time call

data->functionDAE(...);

The actual definitions of functions like functionDAE needs to use something similar to the fmiFullName() macro. Or other approach that accomplishes the same effect.

[sjoelund.se]

Postponed until 1.9.1

[sjoelund.se]

This ticket was not closed for 1.9.1, which has now been released. It was batch modified for milestone 1.9.2 (but maybe an empty milestone was more appropriate; feel free to change it).