Exported dataframes with r_numbers should have sequence information in them

[Jhsmit]

When dataframe with fit results are generated, sequence information should be added as well. This makes reading and aligning/checking data in further postprocessing steps easier.

For global fitting, that should happen at this line.

Sequence information is available on the Protein object (KineticsSeries.Coverage.Protein)

[Jhsmit]

a10936191461f79022cceb3379760e390faf999a partially adresses this needs to be done also for other fit results

[Jhsmit]

Check current status but I think progress had been made here