Update to iText PDF 7

[Nicklas Nordborg]

We are currently using iText PDF 5.5.3. The latest version is 7.1.13. The API has changed a lot and is not backwards compatible. But it seems to be better designed and easier to work with. There is also SVG support (in case we need that).

[Nicklas Nordborg]

In 6058:

References #1277: Update to iText PDF 7

Added new utility class PdfUtil7 which uses iText PDF 7. Functionality is similar to the existing PdfUtil class but not everything has been implemented. The SCAN-B report (#1190) has been updated to use the new implementation.

[Nicklas Nordborg]

In 6060:

References #1277: Update to iText PDF 7

Updated the "Gene report" and "Pilot report" to use the new implementation.

[Nicklas Nordborg]

In 6061:

References #1277: Update to iText PDF 7

Updated the "Referral generator" to use the new version.

[Nicklas Nordborg]

In 6062:

References #1277: Update to iText PDF 7

Removed the old PdfUtil implementation and the old iText PDF version.

[Nicklas Nordborg]

In 6064:

References #1277: Update to iText PDF 7

Implemented support for importing SVG images to a PDF.

[Nicklas Nordborg]

In 6069:

References #1277: Update to iText PDF 7

Started to re-design the PdfUtil class to make it easier to combine text options such as bold, underlined and colored text.

Tested with the SCAN-B report.

[Nicklas Nordborg]

In 6070:

References #1277: Update to iText PDF 7

Implemented rotation as a generic option. Changed all usage to the new API with Options.

[Nicklas Nordborg]

In 6073:

References #1277: Update to iText PDF 7

Added support for italic texts since we already had the fonts files in the distribution.