Create converter which allows to write filtered data into mzXML mzML

[wolski]

At the moment, filtered data is stored as images only. There is no option at the moment to convert it back into mzXML or mzML files (at least for images containing more than a single map).

This converter would use the output of the conv2Image tool to generate the filtered mzXML/mzML file.

[wolski]

There is an function write in the LCMSImageReader class which allows to store an LCMSImage into an mzML file.