build.sh: read from build.properties and create variable for them
build.sh: read from build.properties and create variable for them

ControlSystemStudio/org.csstudio.iter,ControlSystemStudio/org.csstudio.iter,css-iter/org.csstudio.iter,ControlSystemStudio/org.csstudio.iter,css-iter/org.csstudio.iter,css-iter/org.csstudio.iter,css-iter/org.csstudio.iter,css-iter/org.csstudio.iter,css-iter/org.csstudio.iter,ControlSystemStudio/org.csstudio.iter,css-iter/org.csstudio.iter,ControlSystemStudio/org.csstudio.iter,ControlSystemStudio/org.csstudio.iter,ControlSystemStudio/org.csstudio.iter,ControlSystemStudio/org.csstudio.iter,css-iter/org.csstudio.iter