add model Document

Signed-off-by: Thomas Bernhart <thomascbernhart@gmail.com>
add model DocumentList

Signed-off-by: Thomas Bernhart <thomascbernhart@gmail.com>
add model Person

Signed-off-by: Thomas Bernhart <thomascbernhart@gmail.com>
DocumentListMapper erstellt.

Signed-off-by: Thomas Bernhart <thomascbernhart@gmail.com>
Add empty line to end of model files
Add AbstractModel