Modifications to LauResonanceInfo to allow customisation of which extra parameters are shared between charge conjugate or shared-parameter records. - Where the parameters are not shared they are independently created instead of being cloned. Modification of LauRhoOmegaMix to take advantage of the above to have the magB and phiB parameters independent. Addition to LauResonanceMaker of rho(770)_COPY record that is a shared record with rho(770) - this allows the above new feature to be used. Minor unrelated improvement to information messages in LauIsobarDynamics.

git-svn-id: svn+ssh://phab.hepforge.org/source/laurasvn/trunk@318 30227d83-a2f9-49e9-9e98-657c83b2c86a