PDFBOX-387: new Maven pom.xml files for pdfbox, fontbox, and jempbox
PDFBOX-387: new Maven pom.xml files for pdfbox, fontbox, and jempbox

Some further improvements like SNAPSHOT versions, org.apache.pdfbox groupId, the Apache parent POM, better dependency scopes, etc.

git-svn-id: 73746072a361c8027bb2177f17128911b05b2bab@718464 13f79535-47bb-0310-9956-ffa450edef68

gavanx/pdflearn,ZhenyaM/veraPDF-pdfbox,ZhenyaM/veraPDF-pdfbox,benmccann/pdfbox,ChunghwaTelecom/pdfbox,mathieufortin01/pdfbox,joansmith/pdfbox,benmccann/pdfbox,gavanx/pdflearn,BezrukovM/veraPDF-pdfbox,mathieufortin01/pdfbox,torakiki/sambox,torakiki/sambox,joansmith/pdfbox,ChunghwaTelecom/pdfbox,veraPDF/veraPDF-pdfbox,mdamt/pdfbox,mdamt/pdfbox,BezrukovM/veraPDF-pdfbox,veraPDF/veraPDF-pdfbox