differentiate between unsupported and invalid encodings
differentiate between unsupported and invalid encodings

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