stack/erp5: Add zbarlight.

stack/erp5/buildout.cfg

@@ -63,6 +63,7 @@ extends =
   ../../component/findutils/buildout.cfg
   ../../component/userhosts/buildout.cfg
   ../../component/postfix/buildout.cfg
+  ../../component/zbarlight/buildout.cfg
   ../monitor/buildout.cfg
   ../../software/caucase/software.cfg
   ../../software/jupyter/software.cfg
@@ -465,6 +466,7 @@ eggs = ${neoppod:eggs}
   ${h5py:egg}
   openpyxl
   ${statsmodels:egg}
+  ${zbarlight:egg}
   lock_file
   astor
   APacheDEX