BUCKMINSTER: allow circular dependency.
Solves: Circular component dependency detected. Chain is b18-config -> uk.ac.gda.client -> uk.ac.diamond.scisoft.analysis.plotclient -> org.eclipse.dawnsci.plotting.api -> org.eclipse.dawnsci.plotting.examples -> org.eclipse.dawnsci.plotting.api
BUCKMINSTER: allow circular dependency.
Tell Buckminster about new uk.ac.gda.devices.hplc plugin in 8.40/8.42