Allow custom ingest tokens in the API

[MLSLasecki]

Hi everyone,

LogScale GraphQL allows for creation of custom ingest tokens through the 'customToken' parameter of 'addIngestTokenV3'. Unfortunately, this parameter in not currently available in the Go API. Could this be made available in the Add and Update functions? I think this if a fairly simple change and it would allow for moving ingest tokens around without changing their value (for example when moving a parser to a different repository).

Any help is much appreciated!

Best regards, Alex