modified pom.xml
modified pom.xml

changed group id: now eu.simuline.m2late
added properties:
maven version and encoding to make builds more reproducible.

added plugins:
maven-enforcer-plugin to enforce mvn version (newly use 3.6.0)
updated plugins

Reissner/maven-latex-plugin,Reissner/maven-latex-plugin,Reissner/maven-latex-plugin,Reissner/maven-latex-plugin,Reissner/maven-latex-plugin