Fixed HPLC-DAD .ocb peak import

[Mailaender]

Closes #857

[eselmeister]

Yep, that could be a fix for the problem. But

peakMaximum.addScanSignal(new ScanSignalWSD(0, totalSignalScan));

sets a peak without any wavelength information. A peak could consist of several wavelengths when using HPLC-DAD. In case of HPLC-UV/Vis, most commonly only one wavelength at a time is used. Probably, we should create a new version soon, that also allows to store n wavelengths for a WSD peak. Additionally, the adjustTotalIntensity might need improvements. In case of GC-MS it's easy as only positive values occur. In case GC-FID, we have only one signal. In case of HPLC-UV/Vis too. But with HPLC-DAD, positive and negative signals might be available.

Give me some time to think about side-effects regarding this PR. I'll come to a decision today.

[Mailaender]

I was inspired by

chemclipse/chemclipse/plugins/org.eclipse.chemclipse.msd.model/src/org/eclipse/chemclipse/msd/model/core/IIon.java

Line 45 in 9921848

double TIC_ION = 0.0d;

[eselmeister]

Yep, that was also the right choice. In a next version, we should improve the HPLC-DAD peak handling. Let's chat.