Fix generation of numeric node ids
Fix generation of numeric node ids

The current implementation generates numeric node ids that collide
with node ids specified in NodeIds.csv.

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