chore: Added missing prepareToaDataForCalculations function

VERSION

-320
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+321
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lib/+artoa/+controller/prepareToaDataForCalculations.m

+function [toaData] = prepareToaDataForCalculations()
+%PREPARETOADATAFORCALCULATIONS This function returns a toaData struct that matches the initial state including the empirical shift.
+%   This function is required to recalculate the TOAs. Because toaData.toa
+%   is used for storing the TOAs that have been calculated, this struct is
+%   being reset everytime a new calculation takes place. If not, the
+%   already calculated TOAs are used as input for the new calculations,
+%   making them add up.
+
+global artoaWorkspace artoaDataInput;
+
+toaData = artoaWorkspace.toaData;
+toaData.toa = artoaDataInput.toaData.toa + artoaWorkspace.toaData.empiricalShift;
+
+end
+