parsing styles
Merge branch 'Develop' of https://github.com/wfiis-tgmg/PDFAnnotation into Develop

Conflicts:
	PDFAnnotation-itext/src/main/java/pl/edu/agh/tgmg/itext/generators/buildingblocks/PdfTableHeader.java
	PDFAnnotation-itext/src/main/java/pl/edu/agh/tgmg/itext/generators/buildingblocks/PdfTableRow.java
	PDFAnnotation-itext/src/main/java/pl/edu/agh/tgmg/itext/generators/buildingblocks/SingleDataTable.java
style parsing almost finished