EDIT

ref #7059 ref #7046 using kindOfunit for TypeDesisgnations instead of DerivationEvent type and fixing save and LIE problems:
- intoducing EntityCache to allow re-using previously loaded entities
- CdmEntityCache implements EntityCache
- ToOneRelatedEntityReloader to replace entities loaded by the LazySelect...

fix #7059 using KindOfUnit instead of DerivationEventType

reloading new reference to get id

ref #7054 removing '.representations' from init strategies

fix #7053 fixing inconsistent field enablement

cleaning up debug code

ref #7046 removing prepareAsFieldGroupDataSource() which was opening connectinos which where never closed and adding missing initStrategies

removing old unused CdmVaadinConversationalServlet

ref #7046 removing request start and end listener classes

ref #7046 completely removing open session per view implementation and adding init strategies for Name and Typedesignation editor