Add vagrant machine for stretch (build only)
Add vagrant machine for stretch (build only)

NB: Build is not working due to compile problems in CPAN deps

stefanomarty/openxpki,oliwel/openxpki,stefanomarty/openxpki,oliwel/openxpki,openxpki/openxpki,oliwel/openxpki,oliwel/openxpki,stefanomarty/openxpki,stefanomarty/openxpki,oliwel/openxpki,oliwel/openxpki,stefanomarty/openxpki,openxpki/openxpki,stefanomarty/openxpki,openxpki/openxpki,openxpki/openxpki