JsonAddString (FUN)

FUNCTION JsonAddString : ERROR_ID

Add a string value to a JSON object.

InOut:

Scope	Name	Type	Comment
Return	JsonAddString	ERROR_ID
Input	JsonObj	JSON_OBJ_REF	Reference to the JSON object.
	KeyName	STRING(Constants.JSON_MAX_KEY_LEN)	Key string identifier for the value.
	StringValue	POINTER TO STRING	String value reference.