fix(core): Correctly select the esacped string characters for JSON
fix(core): Correctly select the esacped string characters for JSON

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