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Add Enumerated(3GPP/Experimental-Result-Code)
Add 3GPP Experimental-Result-Code values from 3GPP TS 29.230 V15.7.0 (2019-12) section 8.1.
There is a DIAMETER_ERROR_ABSENT_USER name conflict between:
Rename 4201 from 3GPP TS 29.173 to DIAMETER_ERROR_ABSENT_USER-29.173.