Separate domain-level vs. run-specific output information

[dschlaep]

Restructure code to separate domain-level vs. run-specific output information across structures SW_OUTPUT, SW_GEN_OUT, and SW_OUTPUT_POINTERS.

For instance, SW_GEN_OUT contains

• tOffset which changes with each run (during the run)
• colnames_OUT which are identical for all simulation runs

--> Run-specific information needs to live somewhere inside SW_ALL --> Domain-level information needs to live somewhere inside SW_DOMAIN