Add translation of mesocrystal parameters to GUI (and partly core)

Provide translation from domain to GUI for MesoCrystal

Handle disabling of particle abundance in MesoCrystalItem (include handling of MesoCrystalItem as a parent)

Handle disabling of particle abundance in ParticleCoreShellItem (include handling of MesoCrystalItem as a parent)

Handle disabling of particle abundance in ParticleCompositionItem (include handling of MesoCrystalItem as a parent)

Simplify disabling of particle abundance in ParticleItem and include handling of MesoCrystalItem as a parent

Add MesoCrystal to simulation widget in GUI and replace old MesoCrystalBuilder with new one (that corresponds to the Python example)