fix(server): Call AddNode_finish on auto-generated mandatory children
fix(server): Call AddNode_finish on auto-generated mandatory children

jpfr/open62541,open62541/open62541,JGrothoff/open62541,JGrothoff/open62541,open62541/open62541,JGrothoff/open62541,jpfr/open62541,JGrothoff/open62541,jpfr/open62541,jpfr/open62541,open62541/open62541,open62541/open62541