Logging API is missing a TSTextLogObjectRollingSizeMbSet()

These all exist, but seems to be missing the API to set rolling size:

• Enabled: TSTextLogObjectRollingEnabledSet()
• Interval: TSTextLogObjectRollingIntervalSecSet()
• Hour: TSTextLogObjectRollingOffsetHrSet()

It seems the rolling size can only be set globally in records.config (proxy.config.log.rolling_size_mb) and in the logs_xml.config (<RollingSizeMb = "size_in_MB"/>).

Please add the missing TSTextLogObjectRollingSizeMbSet() API.